1.If he didn't drive carelessly , His mother wouldn't worry about him

Câu ở hiện tại

⇒ Câu điều kiện loại 2

2.The witnesses reported that he had broken into this house with a gun the night before

S + repoted that + S + V_lùithì + ...

Ở đây quá khứ đơn ⇒ Qquá khứ hoàn thành

3.If only I had regerted going to the cinema yesterday

IF ONLY + S + had + V3/-ed + …

4.Will asked Louisa if she had ever tried Cappuccino before

S + asked + O + if + S + V_lùi thì

5. Although he has high - paying job, he's not satisfied with his life

Despite + N + ,..

⇒ALthough + S + V + .. , ...

`1.` If he didn't drive carelessly, his mother wouldn't worry about him.

Vì câu trước ở thì hiện tại đơn `->` viết lại là câu điều kiện loại II

Cấu trúc: if + S + V(quá khứ đơn), S + would + Vnd

`2.` The witnesses reported that he had broken into that house with a gun the previous night.

Câu tường thuật: S + told/ asked/... + S + V(lùi thì)

`3.` If only I had regerted going to the cinema yesterday.

Cấu trúc: if only + S + V(quá khứ hoàn thành)

`4.` Will asked Louisa if she had ever tried Cappuccino before.

Câu tường thuật với Yes/No questions:

S + told/ asked/... + if/whenever + S + V(lùi thì)

`5.` Although the job pays well, he is not satisfied with his life.

Although + S + V, S + V