Bí quá mong mn giúp với ạ. Cảm ơn

`4` Lan asked me she was looking much better.      

`5` He says the river was rising early that year.                                           

`6` She asked me she would do it if necessaly she could.                                                            

`7` He asked his friend if he didn't see the accident the day before.                                  

`8` John asked me How I didn't come there.        

`9`. He asked Nam if he had finished his task.          

`10` He said the day before evening he met Nam . He had bought a new car.

Cấu trúc:

S + asked/asked sb/wondered/wanted to know/ + if whether + Clause

S + asked/asked sb/wondered/wanted to know + Clause (Wh-word + S + V)

S + V + (if) + S + V

If + S + V-ed

If + S + had + V-PII

S + would + V