问题

Is there any possibility ________ scientists will find a planet like our earth in the near future

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

正确答案是：

同类题型

We have to give the users something new ________ whatwe’ve already offered, which is the only way to broaden the appeal of the website.

They left without leaving a message，_____was more than we hadexpected．

It is 10 o’clock now. He _____ be back atany time.

Not until I ________ to work ____ how much time I had wasted.

_________thatdeveloped countries want to limit the development of the developing countriesin the climate conference in Copenhagen