----- Nội dung dịch tự động từ ảnh ----- EX 3. Rewrite the first sentence so that the second one means nearly the same as the first one. 1. We started doing researches on this chemical three months ago. -We have... 2. He began growing this kind of plant five months ago. - He has ... 3. He has been collecting stamps for five years. He started. 4. She hasn't gone out with him for 5 months. → The last time . . 5.We haven't seen such a cruel mother before. > This is the first . 6.It's two years since we last saw Mr. Jones. → We haven't. 7.This is the first time I have visited the USA. →I haven't. 8.I have learnt English for 10 years now. →I began
