1. Nam collects old newspaper. It is useful. --)It... 2. Why did he smoke cigarettes? It was very harmful. --)It... Help!

2 câu này bạn sử dụng cấu trúc nhấn mạnh:

It + be + adj + (for sb) + to + Vinf

Theo đó chúng ta có đáp án 2 câu là:

1. It is useful for Nam to collect old newspaper.

2. It was very harmful for he to smoke cigarettes.

1-> It is useful for Nam to collect old newspaper

2-> It was very harmful for him to smoke cigarettes

Câu 2 đều có ý muốn phê phán việc làm hút thuốt chứ không phải câu hỏi

áp dụng:

s+am/is/are+adj for object( him,her them,...) to V