_____is too hard _____ a good solution to this problem.
#55891
A
It; finding
B
This; to find
C
This; finding
D
It; to find
推荐题目
The twins are so much alike that it is difficult to tell one from________.
#55916
A
other
B
the other
C
others
D
another
—The books are so nice, which one can I take? —Oh, you can take _______ of them. I’ll keep none.
#55756
A
both
B
all
C
neither
D
either