A: I have read many books. B: Which ones make you want to read them again? B: Which of them do you want to read again?
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Belinda Chen*I am wondering why "ones" should be added after "which" in the first sentence but it does not have to be added in the following sentences?'Ones' is not necessary in the first one, but it is a bit more natural there.
Belinda ChenAlso in the second sentence, why does "it can't be sure..." not work here?Your phra
Belinda Chen "But which have been sold out is not sure"No. Think about the subject.
Belinda Chen*With his help, it can be sure that we will pass the exam.*With his help, we can be sure that we will pass the exam.
Belinda Chen*I found the evidence which can be conclusive that he committed the crime.I found the evidence which can conclusively pr
Belinda ChenBut which have been sold out is not sureI would say that as It is not certain which have been sold out.