Rewrite the following sentences, using the words given. 4. My sister began to study English a year ago. -> She has ..................................................................................................... 6. Scientists began to fight against AIDS in 1980. -> Scientists have .......................................................................................... 7. This hospital began to use laser treatment 5 years ago. -> This hospital has been ............................................................................. 8. She started working as a book keeper for this company 5 years ago. -> She has ..................................................................................................... 10. How long have you studied English? -> When ......................................................................................................... 11. The Browns have been living in London for 20 years. -> The Browns began .................................................................................... 16. When did she begin to do research on lung cancer? -> How long ...................................................................................................

Đỗ Thị Linh

Cách làm:

- Để chuyển từ quá khứ đến hiện tại hoặc dùng cấu trúc Present Perfect, chúng ta cần sử dụng động từ "have/has + past participle". Trường hợp này cụ thể là "have + past participle".
- Chú ý sự thay đổi trong cấu trúc câu sau khi chuyển từ quá khứ sang hiện tại trong trường hợp này.

Câu trả lời:

4. She has been studying English for a year.
6. Scientists have been fighting against AIDS since 1980.
7. This hospital has been using laser treatment for 5 years.
8. She has been working as a book keeper for this company for 5 years.
10. When did you start studying English?
11. The Browns began living in London 20 years ago.
16. How long has she been doing research on lung cancer?

Hãy giúp mọi người biết câu trả lời này thế nào?

41 vote

Cảm ơn 8 Trả lời.2 năm trước