问题 选择题

Stephen Hawking has expressed his opinion   ___ humans might one day be able to make spaceships capable of such speeds that time on board would slow down.

A.that

B.whom

C.which

D.what

答案

答案:A

考查名词性从句。句中考查that引导的同位语从句,解释说明名词his opinion,在句中不作任何成分,故选A。

单项选择题
单项选择题