There is little doubt ________ the Internet is a great inventionin human history

题干

There is little doubt ________ the Internet is a great inventionin human history.

A．whether

B．that

C．which

D．what

上一题下一题 0.65难度单项选择更新时间:2018-12-29 12:16:47

小学学科试题库

初中学科试题库

高中学科试题库