Ex6:

1.have lived

2.has worker

3.does

4.were't living

5.did put

6.is studying

7.living

8.has been

9.will work

10.came

Ex7:

1.will do

2.need

3.will not be

4.will buy

5.won't write

6.will go

7.plant

8.is/will die

9.calls

10.rain

11.recycle/will save

12.haven't clean

bài 6 

1 have lived

2 has worked

3 did john do

4 didn't live

5 did you put

6 is studying 

7 living

8 have been

9 worked

10 came

bài 7

1 will do

2 need

3 won't be

4 will buy

5 won't write

6 will go

7 plant / will be

8 is / will die

9 doesn;t call / will stay

10 rain

11 recycles/ will save

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