I/

1. They have just invented a new kind of robot

`->` A new kind of robot has just been invented.

2. The man is talking to Jack over there. He is my new English teacher

`->` The man who talking to Jack over there is my new English teacher.

3. Why don't you buy a dictoinary?

`->` I suggest you should buy a dictoinary.

4. I don't have any food left in the fridge, so i will go out for dinner.

`->` If I had any food left in the fridge, I wouldn't go out for dinner.

II/

1. Although/ it / rain/ last night / he/ go / the snow/ on time.

`->`  Although it rained heavily last night, he went to the snow on time

2. He / sorry/ that/ break/ my bicycle/ yesterday.

`->`  He is sorry that he broke my bicycle yesterday.

I, Viết lại câu:

1.A new kind of robot has just been invented.<kiến thức câu bị đông>

2.The man who is taking to jack over there is my new EL teacher. < kiến thức mệnh đề quan hệ>

3.I suggest you should buy a dictionary< tôi đề nghị bạn nên mua một cuốn từ điển,

        Sau động từ khuyết thiếu như should, must, can,...dùng V ko chia hay còn gọi là V<Inf>

4. If I had any food left in the fridge, I wouldn't go out for dinner.

 <cấu trúc câu điều kiện loại II không có thật trong hiện tại:

           If+ S+ Ved/Cột 2, S+ would/could+Vko chia>

  Nếu tôi còn thức ăn trong tủ lạnh, tôi sẽ không ra ngoài ăn tối.

II,Hoàn chỉnh câu.

1. Although it was rain last night, he went to the snow in time.

2. He was sorry that he broke my bicycle yesterday.

Chúc chủ tus học giỏi điểm cao nhé ^^