Mình làm r nhé

1 Susan may know the address

2 Joanna might not receive my message

3 The report has to be on my desk tomorrow

4 I was able to finish all my work

5 Nancy didn't have to clean the flat

6 You had better sit down

7 You mustn't smoke in the museum

8 We don't have to bring an umbrella because the weather is beautiful

9 You may need to buy a ticket for your child

10 All new soliders have to have a medical examination

11 Foreigners don't have to register for military service

12 I have never visited such a beautiful city

13 Tom has played the piano for 4 years

14 You should try to avoid all junk food

15 It's such an expensive electric car that I don't think I can buy it

16 She hasn't written to me for nearly 2 years

Bạn chụp full đoạn văn nhé

1 D

2 A

3 C

4 D

5 C

6 A

7 B

8 A

9 D

10 B

Ex1

1 C

2 A

3 D

4 B

5 C

Ex2

1 D

2 A

3 C

4 C

5 C

Ex3

1 A

2 C

3 B

4 A

5 C

Ex4

6 A

7 C

8 C

9 A

10 D

11 D

Question 12: A

13: C

14 C

15 D

16 A

17 C

18 A

19 D

A B C D S H K G M N E

Trong mp(SAD) qua G dựng đường thẳng d//AD

HA=HB; KC=KD => HK là đường trung bình của hình thang ABCD

=> HK//AD và \(HK=\dfrac{AB+CD}{2}\)

Ta có d//AD

=> d//HK (cùng // với AD)

\(\Rightarrow d\in\left(GHK\right)\) mà \(d\in\left(SAD\right)\) => d là giao tuyến của (SAD) với (GHK)

Xét tg SAE có MN//AD \(\Rightarrow\dfrac{SM}{SA}=\dfrac{MG}{AE}=\dfrac{SG}{SE}=\dfrac{2}{3}\)

Xét tg SAD có MN//AD \(\Rightarrow\dfrac{MN}{AD}=\dfrac{SM}{SA}=\dfrac{2}{3}\Rightarrow MN=\dfrac{2}{3}AD\)

Do MNHK là hbh => MN=HK

\(\Rightarrow\dfrac{2}{3}AD=\dfrac{AD+BC}{2}\Leftrightarrow4AD=3AD+3BC\)

\(\Leftrightarrow AD=3BC=k.BC\Rightarrow k=3\)

23 C

24 C

25 A

26 D

27 B

28 C

29 C

30 D

31 D

32 C

33 A

34 C

Reading

1 C

2 B

3 D

4 A

5 B