Giải hộ mình câu này với các bạn=))))))))))))))

Sự việc ở hiện tại: Dùng câu điều kiện loại 2 (If + S + V-ed/2, S + would/could + V-inf).

Sự việc ở quá khứ: Dùng câu điều kiện loại 3 (If + S + had + V3/ed, S + would/could + have + V3/ed).

II. Rewrite the sentences using "If"

If David weren't so clumsy, he wouldn't have so many accidents. (Hiện tại $\rightarrow$ Loại 2)

If I weren't so busy, I would write to my friends regularly.(Hiện tại $\rightarrow$ Loại 2)

If Sandra arrives a bit early, she can help you get things ready.(Khả năng ở tương lai $\rightarrow$ Loại 1)

If the bus weren't always so crowded, I would ride it to school every morning.(Hiện tại $\rightarrow$ Loại 2)

If the office is closed, Mark won't be able to get in.(Khả năng ở tương lai $\rightarrow$ Loại 1)

If people realised how important it is to conserve energy, they would do something about it.(Hiện tại $\rightarrow$ Loại 2)

If you want a chat, just give me a ring.(Loại 1 - Câu mệnh lệnh)

If it weren't raining, we would finish the game.(Hiện tại $\rightarrow$ Loại 2)

If the driver in front hadn't stopped suddenly, the accident wouldn't have happened.(Quá khứ $\rightarrow$ Loại 3)

If the airport hadn't been closed, Sarah would have been able to fly to Rome.(Quá khứ $\rightarrow$ Loại 3)

If Carol hadn't been studying, she would have answered the phone.(Quá khứ $\rightarrow$ Loại 3)

If I had had an umbrella, I wouldn't have got very wet in the rain.(Quá khứ $\rightarrow$ Loại 3)

III. Put the verb into the correct form (WISH)

Cấu trúc ước cho hiện tại: S + wish + S + V-ed/2 (be $\rightarrow$ were).

I'm not tall enough to play volleyball. I wish I were tall and strong.

I'm fed up with this rain. I wish it would stop raining.(Ước cho một sự thay đổi trong tương lai hoặc phàn nàn dùng "would + V")

My grandparents don't like living in the city. They wish they lived in the countryside.

It's a difficult question. I wish I knew the answer.