Viết lại câu sau = cách khác, nghĩa ko thay đổi
1. We haven't helped children do homework since we left university
=> The last time we helped children do homework when we left university.
2. When did you begin to plant trees?
=> How long have you planted tree ?
1. The last time we helped children do homework when me left university.
2. How long have you planted tree?
Viết lại câu sau bằng cách khác, nghĩa ko thay đổi
1. We haven't helped children do homework since we left university
=> The last time we helped children do homework when we left university.
2. When did you begin to plant trees?
=> How long have you planted tree ?
