Choose the sentence that is closest in the meaning to the root one.

It is known that Vitamin C is good for treating colds.

If Mike had felt well today, he couldn't have gone out with his friends.

Mike wishes he felt well today so that he could go out with his friends.

If only Mike had felt well today, he couldn't have gone out with his friends.

Provided that Mike feels well today, he can't go out with his friends.

Ly said that he had a lot of assignments to do.

Ly said that I had a lot of assignments to do.

Ly said that I have a lot of assignments to do.

Ly said that he has had a lot of assignments to do.

Alice asked Tim what did he do last weekend.

Alice asked Tim what he had done last weekend.

Alice asked Tim what he had done the previous weekend.

Alice asked Tim what had he done the previous weekend.

Vietnamese students are said not to be well-prepared for their future jobs.

Vietnamese students are said to be not well-prepared for their future jobs.

Vietnamese students say not to be well-prepared for their future jobs.

Vietnamese students say to be not well-prepared for their future jobs.

Peter advised me to ask the teacher for help.

Peter recommended me not to ask the teacher for help. ,

Peter told me the reason why I did not ask the teacher for help.

Peter suggested that he should ask the teacher for help.

Unless it rain tomorrow, we will water the garden.   

Unless it does rain tomorrow, we will water the garden.

Unless it rains tomorrow, we will water the garden.

Unless it rains tomorrow, we will not water the garden.