问题

Some researchers believe that there is no doubt ______a cure for AIDS will be found.

A:which
B:that
C:what
D:whether

正确答案是：

标签： believe , researchers , some

同类题型

______ seven ______ eight the morning, we usually watch TV at home. [ ]

A：You Tom. What her name.B：I don’t know.

Would you mind staying in such a noisy room?— No, but my son needs a _________ place to study in.

are good friends.

_________ I borrow your history book?—Sure. Here you are.