Thank you for the trouble you have ____ to help me. 
#94785
A
paid
B
taken
C
had
D
asked
推荐题目
You can hardly imagine what great difficulty we had _________ the task.
#92688
A
finishing
B
finished
C
to finish
D
finish
I kept looking at the man, wondering _______.
#93460
A
whether I have seen him before
B
whether I had seen him before
C
that I had seen him before
D
when I saw him before
.He was about to leave ______the telephone rang; ______was from his mother.
#94010
A
when; that
B
before; which
C
when; it
D
before; this
I spent the whole day repairing the car. The work was______ easy.
#92819
A
nothing but
B
something but
C
anything but
D
all but