lẹ nha ae cố lên nha mn

`9.` If the teacher's question hadn't been so difficult, I could have answered it.

`10.` If you don't put more salt, you won't be able to taste it.

`11.` If you don't do your exercise, you will be punished.

`12.` Unless he fails the final examination, he will be able to graduate.

`13.` Unless I have enough money, I won't buy her a diamond ring.

`14.` If there weren't the sun, man would live in the darkness.

`15.` Unless you are careful, you will cut yourself with the sharp knife.

`16.` Had I had enough money, I could have bought the novel.

`17.` Were I you, I would accept the job.

`18.` Had you told me that he never paid his debts, I wouldn't have lent him the money.

`19.` Had my father not gone to work yesterday, he would have known what happend to me.

`-------`

Câu điều kiện:

`-` loại `1`: If + S + V (HTD), S + will/can...+ Vo

`-` Loại `2`: If + S + V (QK), S + would/could... + Vo

`-` Loại `3`: If + S + had + PII, S + would/could...+ have + PII

`-` Unless = If...not + câu khẳng định

`-` Tobe ''were'' với mọi chủ ngữ ở loại `2`

Đảo ngữ:

`-` Loại `1`: Should + S +  Vo,  S + will/can...+ Vo

`-` Loại `2`: Were + S + N/Adj `//` to V; S + would/could... + Vo

`-` Loại `3`: Had + S + PII, S + would/could...+ have + PII