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
_________, the more expensive the camera, the better its quality.
#95196
A
General speaking
B
Speaking general
C
Generally speaking
D
Speaking generally
----Doesn’t she work here ? ----________.
#94930
A
No, already two months since she stopped to work here .
B
Yes,it was two months ago that she stopped working here.
C
Yes, I had thought you already know that .
D
No,it’s almost two months since she worked here.
He is only too ready to help others, seldom, _____, refusing them when they turn to him.
#92133
A
if not
B
if ever
C
if any
D
if so
It was the first time that little Tony ____ a speech in front of so many people.
#92710
A
had made
B
made
C
has made
D
makes
