It was not until the teacher had explained it three times _______ how to work out the problem.
#92129
A
did he understand
B
had he understood
C
that he understood
D
that he didn’t understood
推荐题目
If he takes on this work, he will have no choice but ______ an even greater challenge.＿
#92253
A
meets
B
meeting
C
meet
D
to meet
.He voiced a doubt at the company meeting ______works hard can be______they want to be.
#94081
A
that whoever, what
B
whether whoever, whatever
C
which who, whatever
D
if who, whatever
I prefer ________ the movies rather than ________ home.
#92674
A
go to; stay
B
to go to; stay
C
going to; staying
D
to go to; staying
Remember to introduce your friend Stone to me when he arrives, ______?
#93136
A
will you
B
won’t you
C
will he
D
doesn’t he