1 did you do
Thì QKD vì có last weekend
2 went
Thì QKD vì có last weekend
3 didn't come
Thì QKD vì có last night
6 to help
want+ to- V : muốn làm dì
7 have been
Thì HTHT vì có for a long time
8 to come
Would you like + to- V : muốn dì đó
9 write / were
Used to + V ( bare ) / thì QKD
10 will study
Thì TLD vì có tomorrow