1. Matthew: Why are you so angry with me? All I did yesterday was play basketball. Emma: If you loved me, ______ (you / not / leave) me here all alone on my birthday. A. you wouldn’t leave B.you didn’t leave C. you wouldn’t left D.you wouldn’t have left 2. Why did you stay at a hotel when you were in Paris? You ______ (stay) with Julia. A. can stay B.could stay C. could have stayed D.must have stayed 3. A: It's a pity the lake wasn't frozen yesterday. B: Yes, it is. If it ______ frozen, we could have gone skating. A. had been B. was C. would be D. would have been 4. I’m glad that you reminded me about Amanda’s birthday. ______ (I/forget) if ______ (you/ not/ remind) me. A. I would have forgotten/ you didn’t remind B. I would forget/ you didn’t remind C. I would have forgotten/ you hadn’t reminded D. I would forget/ you hadn’t reminded 5. A: Let’s go to the beach. B: No, it’s too cold. If it _____ (be) warmer, I wouldn’t mind going. A. was B. is C. were D. had been

`1)` `D` you wouldn't have left

`2)` `C` could have stayed

`3)` `A` had been

`4)` `C` I would have forgotten `-` you hadn't reminded

`5)` `C` were

`=============`

`-` Câu điều kiện loại 1 : If + S + V ( s / es ), S + will / can / should + Vinfi

`+` I / you / we / they / N số nhiều  + Vinfi

`+` She / he / it / N số ít + Vs / es

`-` Unless = If ... not

`-` Biến thể : Unless + S + V ( s / es ), S + will / can / should + V

`-` Đảo ngữ : Should + S + V ( s / es ), S + will / can / should + V

`→` Dùng để đặt ra điều kiện có thể xảy ra ở hiện tại hoặc tương lai.

`-` Câu điều kiện loại 2 :  If + S + V ( ed / V2 ), S + would / could + Vinfi

`-` Unless = If ... not

`-` Biến thể : Unless + S + V ( ed / V2 ), S + would / could + V

`-` Đảo ngữ : Were + S + V  ( ed / V2 ), S + would / could + V

⋆ Động từ tobe "were" được sử dụng với mọi ngôi kể.

`→` Diễn tả câu điều kiện không có thật ở hiện tại.

`-` Câu điều kiện loại 3 : If + S + had + V ( ed / V3 ), S + would / could + have + V ( ed/V3 )

`-` Unless = If ... not

`-` Biến thể : Unless + S + had + V ( ed / V3 ), S + would / could + have + V ( ed/V3 )

`-` Đảo ngữ : Had +  S + V ( ed / V3 ), S + would / could + have + V ( ed/V3 )

`→` Diễn tả câu điều kiện không có thật ở quá khứ.

`-` But for + Noun/V-ing, S + would/could.might + V nguyên thể

`->` Diễn tả câu điều kiện không có thật ở hiện tại.