1 were - would you play

2 weren't studying - would have 

3 had taken - wouldn't have got

4 would you go - could

5 will you give - is

6 recycle - won't be

7 had heard - wouldn't have gone

8 would you buy - had

9 don't hurry - will miss

10 had phoned - would have given

11 were - wouldn't eat

12 will go - rains

13 had known - would have sent

14 won't feel - swims

15 hadn't freezed - would have gone

90

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90 quả

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bài đâu bn?

1 had stayed

2 were

3 arrive

4 would have bought

5 would go

6 comes

7 had thought

8 gets

9 will become

10 had known

11 hurries

12 would change

13 would have trusted 

14 doesn't study

15 weren't