I'll remember (send) sending you a poscard when I go(reach) London.
2. Laurence hasn't seen (not, see) her sister since she (leave) for Japan.
3. He (talk) was talking on the phone when the house collapsed (collapse).
4. Helen was breaking (break) her leg while she was skiing (ski) in Switzerland.
5. He was made to sign (sign) a paper admitting his guilt.
6. Ask him to come (come) in. Don't keep him (stand) at the door.
7. What color had (be) this dress been before it washed(wash)?
8. He is busy taking (take) care of her.
9. Last week, when we came(come) back, the dinner (finish).had finished

6. Ask him (come) in. Don't keep him (stand) at the door.
--> to come ...standing
7. What color (be) this dress before it (wash)?
-->was
8. He is busy (take) care of her.
-->taking
9. Last week, when we (come) back, the dinner (finish).
-->came...was finish

I'll remember (send) sending you a poscard when I go(reach) London.
2. Laurence hasn't seen (not, see) her sister since she (leave) for Japan.
3. He (talk) was talking on the phone when the house collapsed (collapse).
4. Helen was breaking (break) her leg while she was skiing (ski) in Switzerland.
5. He was made to sign (sign) a paper admitting his guilt.
6. Ask him to come (come) in. Don't keep him standing (stand) at the door.
7. What color had (be) this dress been before it washed(wash)?
8. He is busy taking (take) care of her.
9. Last week, when we came(come) back, the dinner (finish).had finished

Bn My sai câu 3,4,5,7,9 rồi

1. sending - go
2. hasn't seen - go
3. was talking - collapsed
4. was breaking - was skiing
5. to sign
6. to come - standing
7. had - washed
8. taking
9. came - had finished

​vô trang mình 5 sao nha