I, 1. must 2. mustn't 3. must 4. needn't 5. must 6. mustn't 7. mustn't 8. must 9. must

II,+ 1. finish 2. will catch 3. tries

   + 1. were 2. would buy 3. were

   + 1. had been 2. would have passed 3. had gone

III, 1. were 2. have misssed/ woken 3. finish/wake up 4. will visit 5. wouldn't have become

 6. would help 7. had worked

bạn ơi mình chia số câu ra cho tiện rồi nhé bạn cứ đếm số câu mà làm nhé ạ !!!!!

bài 1

1 must

2 mustn't 

3 must

4 needn't 

5 must

6 mustn't

7 mustn't

8 must

9 must

bài 2

conditional 1

1 finish

2 will catch

3 tries

conditional 2

1 were

2 would buy

3 were

conditional 3

1 had been

2 would have passed

3 had gone

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