—I have been waiting for you so long. —Sorry, I have been in the library, _______ my friend look for some books.
#94750
A
helped
B
helping
C
to help
D
help
推荐题目
Mrs Smith warned her daughter _________after drinking.
#95335
A
never to drive
B
to never drive
C
never drinking
D
never drive
Do you have any difficulty ________?
#96658
A
on listening
B
to listening
C
for listening
D
in listening
The speaker raised his voice but still couldn’t make himself _____.
#92955
A
hear
B
to hear
C
hearing
D
heard
The old teacher lay wide awake on his bed, ___________ all the problems he had to deal with the next day.
#95385
A
thought about
B
to think about
C
thinking about
D
having thought about