.  “He is doing an experiment now ”  He said……………………………… .  “We didn’t say anything at the meeting yesterday”.  They said…………………………… . “They are doing an experiment” -> He said that………………………………… . “ You have to sign the paper again” ->She told me…………………………………

She told me that I have to sign the paper again.

He said that they are doing an experiment.

They said that they didn't say anything at the meeting yesterday.

He said that he is doing an experiment then.

Để giải bài tập trên, ta cần chuyển các từ trong ngoặc về dạng cần thiết và điền vào chỗ trống.

I. WORD FORM
1. England was one of the first countries to industrialize ( industry ).
2. Their suggestion is rejected due to some problems of population. ( suggest )
3. We all regard pollution as a serious matter to human beings ( seriously ).
4. Garbage is considered to be some kind of pollutant ( pollute ).
5. The people in our village are leading a peaceful life ( peace ).

II. VERB TENSES
1. She sang a song before she sat down. ( sing, sit )
2. They went abroad after they sold their house. ( go, sell )
3. I have been learning English since I was at secondary school. ( learn, be )
4. When I walked home, I met an old friend yesterday. ( walk, meet )
5. This time last year they were living in France. ( live )

Câu trả lời có thể sẽ đầy đủ hơn và chi tiết hơn nếu bạn cung cấp thêm thông tin.