问题
What’s _______most useful invention in the 20th century—________computer, I think.
A:go
B:to go
C:going
D:goes;
B:to go
C:going
D:goes;
正确答案是：
同类题型
It is one of the funniest things______ on the Internet so far this year
It was ______ that they all went swimming in the river.
Oh, it’s a snake. – Be careful and don’t ________ it.[ ]
______, she isn’t ready to buy it.
Mr. Smith, would you please speak a little more __________— Sorry! I thought you would follow me.