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Điền can [not] , could [not] , be [not] able to vao o trong
1.I'm afraid I can not come to your party next week.
2.When John was 16 , he was a fast runner . He could run 100 metres in 6 seconds.
3.Yesterday it rained very hard ,so I could not go to the cinema.
4.Uncle Ho traveled a lot . He is able to run over 10 languages.
5.At first , she didn't want to go with us but we can persuade her.
6.Although the questions were quite easy ,I could not answer any of them.
7.Although the questins were very difficult ,I was able to answer all of them.
8.When I was small ,I could sing very well but I could not dance.
9.The class was full but at last he was able to find a seat at the bottom of the class.
10.The computer went wrong , but luckily Phuong could put it right again.
11.The class was full and he could not find a seat anywhere.
12.He can speak English very well.
13.If you are able to buy this house ,please contact us on the number ; 0204 2008.
14.The fire spread through the building quickly but every body can escape.
15.Xuan Hinh might be able to come tomorrow.
16.Her son is weak. He is 2 years old but he can not walk.
17.Cats can see in the dark.
18.Women can live longer than men.
ex1. complete each sentence with can / could / be able to { not }
1. ____Could___________ you swim when you were 10 ?
2. we ____Couldn't____ get to the meeting on the ttime yesterday because the train was delayed by one hour
3. he _____couldn't_____ arrive at the party on the time even after misting the train , so he was very pleased
4. he's amezing , he ____can_________ speak 5 langusges including chinese
5. I _________could____ drive a car until I was 34 , then I moved to the countryside so I had to learn
6. I looked everywhere for my glasses but I ____couldn't___________ find them anywhere
7. I searched for your house for ages , luckily I _couldn't___________ find it in the end
ex2. complete each sentence with can / could / be able to { not }
1. I _______________couldn't_____ understand the chapter we had to read for homework . It was so diffcult
2. I ________can't______ lift this box - it's too heavy . would you help me ?
3. lucy _______can______ make it to our meeting after all. she's stuck in traffic at the moment
4. john ____________can____ play tennis really well . he's champion of his club
5. unfortunately , I really __can_________sting at all . no - one in my family is musical either
6. when the car broke down I was really pleased because I ___can______ solve the problem
7. julian _________could____ play excellent goft when he was only ten
1. My father gave up smoking two years ago. He ______used to smoke________ (smoke) a packet of cigarettes a day.
2. There_____used to be______________ (be) a movie theater here but it closed a long time ago.
3. Mr. An________did not use to drink___________ (not drink) coffee when he was young but he like it now.
4. Peter_______used to have____________ (have) a motorbike, but last month he sold it and bought a car.
5. I________did not use to like___________ (not like) her but we are best friends now.
6.They came to live in the city last year. They______used to live_____________ (live) in a small village in the country.
7. My sister ________used to play___________ (play) tennis a lot but she doesn’t play very often now.
8. When I was a child I__________did not use to study_________ (not study) hard.
III. Complete these sentences with used to or didn`t use to.
Ex: I used to so swimming (go swimming) but now I don’t go swimming any more.
1. My father gave up smoking two years ago. He didn't used to smoke a packet of cigarettes a day.
2. There is used to a movie theater here but it closed a long time ago.
3. Mr. An didn't used to drink coffee when he was young but he like it now.
4. Peter used to have a motorbike, but last month he sold it and bought a car.
5. I didn't used to like her but we are best friends now.
6.They came to live in the city last year. They used to live in a small village in the country.
7. My sister used to play tennis a lot but she doesn’t play very often now.
8. When I was a child I didn't used to study hard.
Read the following text then choose from the list A - F the bet sentence to fill each of the spaces . There is one extra sentence which you do not need .
I have recently become very worried about my 15 - year -old , Nick. Althought he was never brilliant at school, he used to get reasonable good marks (1).........F. But now his work has become o bad that his teachers say he is just wasting his time..........
He used to be such a good swimmer that he won serveral prizes. But now he has given up training . And instead of neat clothes he used to wear , all he ever puts on is the same pair of shabby of old jeans and a dirty sweatshirt.
(2)........E. But that isn't all. Last Sunday , I got up earlier than usual........ Nick was in the kitchen. The radio was so loud that he didn't hear me come behind . My handbag was on the table.(3).C . I often leave it there so that I won't forget it when I go out......D. He had taken some money out of it and was just about to put it in his pocket............
We had a terrible now . Finally, he broke down and confessed everything . He has been going every day to a big amusement arcade near his school and playing electronics games with nick names like Space Warrior and Alien Invaders. I had always thought they were harmless.(4).........A . But now I realize that he's so hooked on them, he'll even steal from his own mother in order to pay for the habit..........
He has promised he won't go there again, but I think he's too addicted to stop .(5)......B . Even if he wanted to he couldn't - and he doesn't........... What can I do to help him ?
C . I often leave it there so that I won't forget it when I go out.
1, Hardly they move into the house when their friends came
2, Trade has gone from bad to worse and staff lays off now
3, None of the people invites to the party can home
4, What a pity. If only I listen to my parents
5, I visit new countries every year. By the time I am sixty, I will visit all the most interesting countries in the world
6, It's high time you did the gardening. You are better off cutting the grass first
7, The whole country is trying to get rid of poor 8, They are looking for the (solve) to the problem
9, During the past years,computers have been revolationed our life
10, A true boring lasts throughout life
11, He was continued late for work
12, John is still young but he is very replace
13, His complaining has been considered
14, He is ready to overcome any hardly
15, The house is big,but it is very comfortable
16, What influenced you most in your choosing of car?
17, Since he has bought a car,he drives to work every day
18, I really dislike asking to answer questions in class when I didn't prepare my lessons
19, When we came,the film was showing for 20 minutes
20, At this time next month,they will worrk in HCM city
21, George worked at the university for forty-five years before he retired
22, Had they realized the danger,they would have done it differently
23, Don't you know that the bridge has closed for repair
24, I don't feel better now if you hadn't talked to me about my problem last night
Chúc bạn học tốt 
Chia từ trong ngoặc:
1, Hardly had they move (move) into the house when their friends came
2, Trade has gone from bad to worse and staff (lay) has been laid off now
3, None of the people (invite) invited to the party can come
4, What a pity. If only I (listen) had listened to my parents
5, I visit new countries every year. By the time I (be) am sixty, I (visit) will have visited all the most interesting countries in the world
6, It's high time you (do) did the gardening. You are better off (cut) cutting the grass first
7, The whole country is trying to get rid of (poor) poverty
8, They are looking for the (solve) solution to the problem
9, During the past years,computers have been (revolution) revolutionary in our life
10, A true (bore) boredom lasts throughout life
11, He was (continue) continually late for work
12, John is still young but he is very (rely) reliable
13, His (complain) complaint has been considered
14, He is ready to overcome any (hard) hardship
15, The house is big,but it is very (comfortable) uncomfortable
16, What influenced you most in your (choose) choice of car?
17, Since he (buy) bought a car,he (drive) has driven to work every day
18, I really dislike (ask) being asked to answer questions in class when I (not prepare) haven't prepared my lessons
19, When we came,the film (show) had been shown for 20 minutes
20, At this time next month,they (work) will be working in HCM city
21, George (work) had worked at the university for forty-five years before he retired
22, Had they realized the danger,they (do) would have done it differently
23, Don't you know that the bridge has (close) closure for repair
24, I (not feel) wouldn't have felt better now if you hadn't talked to me about my problem last night
Bài 1: Each line hasa mistake, find and correct it
1. Thank you for inviting me to the party. I wish I can=>could but I can't
2. He is used=>used to drink coffee for breakfast but now he drinks milk
3. The kitchen is not very big but there's=>there are a lot of cupboards
4. Lukas can=>could play the piano when he was two and now he practices it
5. We were very poor when we were first in America, we can't=>couldn't buy anything