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

_____ is it today?—It’s Wednesday. [ ]

The weather is really terrible these days. Tell the children to be________.Don’t have a cold..

Did you see the movie called Los Angles 2011? —Yes, but I think it’s ______. I wanted to sleep when I saw it.

The young man is ________ to carry the heavy box.

.— We weren’t able to any new suggestions.— Don’t worry. We’ll try to figure it out.