Viết lại câu sao cho nghĩa ko đổi 1. They have just sent an ambulance to the school => An ambulance ... 2. ''There are flights from Nha Trang to HN twice a week" they said to me => They told me ... 3. It's 3 years since I last saw Nam => I haven't ... 4. Keeping the environment clean is very important => It's ... 5. Learning E is very necessary => It is ... Nếu được các bạn có thể cho mk công thức đổi luôn được ko ạ ~ Thanks nhìu ạ!!!

Để viết lại câu cho câu hỏi trên, ta cần sử dụng các cấu trúc đổi câu như sau:

1. Bị động:
S + have/has + just + Vpp + (O) => An ambulance has just been sent to the school.

2. Reported speech:
They said to me "There are flights from Nha Trang to HN twice a week" => They told me that there are flights from Nha Trang to HN twice a week.

3. It's + mốc thời gian since + S + last V(past simple) => I haven't seen Nam for 3 years.

4. It's + adj + to-infinitive => It's very important to keep the environment clean.

5. It + to-be + adj + to-infinitive => It is very necessary to learn E.

Ví dụ
1. An ambulance has just been sent to the school.
2. They told me that there are flights from Nha Trang to HN twice a week.
3. I haven't seen Nam for 3 years.
4. It's very important to keep the environment clean.
5. It is very necessary to learn English.

It is very necessary to learn English

It's very important to keep the environment clean

I haven't seen Nam for 3 years

They told me there were flights from Nha Trang to HN twice a week