Bạn tham khảo :

1 did

2 Have Susan gone

3 vistited

4 haven't help 

5 were not

6 did you design

7 hasn't crashed

8 have taken off

9 Did - phone

10 hasn't drunk

11 has arrested

12 has gone - is coming

13 Không có

14 has already bought

15 are there in your team win 

1 . I ...did..... my homework yesterday ( to do )

2 . .....Will ..Susan.....go.......to England by plane ? ( to go)

3 . They .....visited ....... a farm two weeks ago ( to visit)

4 . Jenny and Peggy ....don't have...... their brother ( not/to help )

5 . The children ......don't..... at home last weekend ( not/to be )

6 . When ...did....you....design........this wonderful skirt ? ( to design )

7 . My mother ...didn't crash.... into the van ( not/to crash )

8 . The boys ....take off.....the mudguards of their bicycles ( to take off )

9....Did.....you....phone.......your aunt last week ? ( to phone)

10 . He ...doesn't drink.... milk at school ( not/to drink )

11 . The police ...arrested....two people early this morning ( to arrest )

12 . She ..went ......to Japan but now she .has come..back ( to go - to come ) 

14 . Dan ...has already bought......two tables this year ( already/to buy )

15 . How many games .....has your team to won.....so far this season ? ( your team/to win )