`1` She didn't succeed in persuading her father to buy her a new bike .

`-` fail `-` not succeed : không thành công .

`-` succeed in + V_ing .

`2` The old building is going to be pulled down soon .

`-` Bị động tương lai gần : S(bị động) + is/am/are + going to + be + V3/Vpp + O .

`-` demolish `=` pull down : dỡ bỏ (V)

`3` They were not sure whether to use this support service .

`-` whether + to V : có nên làm gì hay không .

`4` If he had not been lazy , he would have passed the exam .

`-` ĐK3 : If + S + had + V3/Vpp + O , S + would/could + have + V3/Vpp + O .

`5` Susan is said to have been an intelligent artisan .

`-` Bị động đặc biệt `(` Quá khứ `)` : S(bị động) + be + V3/Vpp + to + have + V3/Vpp + O .

=>

1. She didn't succeed in persuading her father to buy her new bike.

-> succeed in Ving ~ thành công trong

2. The old building is going to be pulled out soon.

-> be pulled out ~ demolish

3. They were not sure how to use that support service.

-> how to V ~ làm thế nào để

4. If he had not been lazy, he would have passed the exam.

-> câu đk loại 3: If S had V3/ed, S would have V3/ed

5. Susan is said to have been an intelligent artisan.

-> Bị động: S is/are said to have V3/ed (lệch thì)