Câu 1,2 ạ cứu tớ với

Đáp án`+`Giải thích các bước giải:
`1.` If the city council had provided recycling bins, we would be able to recycle our household waste.
Form: $S+had+(not)+V_{PP}/V_{ed}, S+ would+(not)+V_O$

`2.` If the teacher hadn’t explained what acid rain is, the students wouldn’t know how dangerous it is.

Form: $S+had+(not)+V_{PP}/V_{ed}, S+ would+(not)+V_O$

`3.` If there hadn’t been a torrential storm, the streets wouldn’t be flooded now.

Form: $S+had+(not)+V_{PP}/V_{ed}, S+ would+(not)+V_O$

`4.` If he hadn’t put the wrong type of petrol in the car, it would be working well now.

Form: $S+had+(not)+V_{PP}/V_{ed}, S+ would+(not)+V_O$

`1.` If the city council had provided recycling bins, we could recycle our household waste.

`2.` If the teacher hadn't explained what acid rain is, the students wouldn't know how dangerous it is.

`->` QK....HT `=>` ĐK hỗn hợp

`->` ĐK hỗn hợp : If + S + had + PII, S + would/could + V