1 A=> don't

2 C => as

3 B => hard

4 D => easily

5 D => perfect

1 A => ought to

2 A => to leave

3 A => is

4 C => up

5 B => upstairs 

1: A: ought => ought to

2: A: leave => to leave

3: A: are => is

4: C: on => up

5: B: upstairs => upstairs 

q, is => are

2. a most => the most

dòng 3 mình thấy đúng mà nhỉ?

get => gets / beautifully => beautiful 

celebrate => celebrated

1 B => so

2 D =>two years

3 D => including

4 A => takes place

5 B => is held

1 their

2 Peter's

3 mine

4 boys'

5 her

6 ours

7 yours

8 her

9 their

10 hers

1 Although => However

2 however => but

3 However => but

4 But => although

5 although => but

1. C -> would have

2. D-> didn't

3. B -> it was

4. B -> is

5. C -> on May 29th

6. B -> many