4 did-start
5 didn't see
6 has already done
7 am doing
8 is
9 is, will-do
10 starts
11 is increasing
12 will come
13 has visited
14 does-do
15 are-going to do, am going to visit
16 have-known, have known
17 haven't seen, were
18 am going
19 Have-met
4. When did you start learning English ? thì quá khứ
5. I haven't seen her since last week. thì hiện tại hoàn thành
6. Tom has already done his homework. thì hiện tại hoàn thành
7. am doing. thì hiện tại đơn
8. is . thì hiện tại đơn
9. is - will do. Thì tuơng lai
10. start . câu này theo mik là thì hiện tại đơn
11 rise
12 will come. tuơng lai
13 have visited . hiện tại hoàn thành
14 dose, do . thì hiện tại đơn
15 will , do
- will visit . tuơng lai
16 câu này mik ko nhớ cách
17 haven't seen. hiện tại hoàn thành
18 will go .tuơng lai
19 did , met. quá khứ
4 did-start
5 didn't see
6 has already done
7 am doing
8 is
9 is, will-do
10 starts
11 is increasing
12 will come
13 has visited
14 does-do
15 are-going to do, am going to visit
16 have-known, have known
17 haven't seen, were
18 am going
19 Have-met