He has given me so much help that I really want to do something for him ______.
#63861
A
in turn
B
by turns
C
in return
D
in answer.
推荐题目
I’ve heard that the wood tower was built more than 1,000 years ago, so I think it is worthy ________．
#74844
A
visiting
B
to visit
C
being visited
D
to be visited
The beggar has no money with which to buy food. However, no passers-by ______ him.
#74906
A
have mercy on
B
are at the mercy of
C
show mercy on
D
to be merciful to