21 C

22 A

23 C

24 A

25 A

26 B

27 A

28 C

29 C

30 A

1 studies - will pass

2 don't take - will get

3 arrives - will reach

4 isn't careful - will get

5 rains - will stay

6 will win - practice

7 won't go - doesn't finish

8 will buy - save 

9 will be - receive 

10 won't pass - don't study

11 arrive - will catch

12 studies - will pass

13 don't hurry - will miss

14 finishes - will go

14 rains - will stay

1 How do you do?

2 Are you interested in a concert?

3 Let's join our school concert to celebrate the Teacher's Day on Sunday

4 You will see a variety of arts, songs, dances, plays and also performances of musical instruments

5 It starts at 8 a.m this Sunday at the Auditorium A of our school  

6 I think we will meet at the bus stop near our houses and then we will go to our school together

7 Write to me soon. I'm sure it will be fun 

1 was

2 had spent

3 has been writing

4 started

5 had been

6 got

7 had been driving

8 realised

9 had left

1 A new school was built 

2 My sister has been promoted

3 Another film about the Titanic are being made

4 Football is shown on Tv everyday

5 That building has been knocked down 

1 T

2 F 

3 F

1 T (give benefits to others = help others)

2 F (you do not get paid to perform community service)

3 F (Community service can help many different groups of people: street children, disabled people, even animals and the environment)

What did you ask people to donate ?

How many volunteer programmes did they organise?

When did you start this project ?

What should people do to reduce traffic jams?

#NCD

1what did you ask people to donate ?

2How many volunteer programmes did they organise?

đề bài hỏi gì vậy bạn?

Đề hỏi j bạn???

Cô ấy thích hát hơn nhảy múa

She prefers singing to dancing.

Câu của bạn gần đúng, nhưng cần một chút điều chỉnh. Câu chính xác là:

Fruit is a convenient source of vitamins and energy.

Lý do:

• Bỏ "The" trước "Fruit" vì câu này không cần mạo từ xác định.
• Thay "be" bằng "is" để phù hợp với thì hiện tại đơn.
• Thêm "a" để chỉ một loại đối tượng trong nhóm.

thêm "the" sau từ is nhé bạn!