It is clever _________ you _________ out
问题:
It is clever _________ you _________ out the problem. [ ]
A. for; to work
B. of; working
C. to; working
D. of; to work
It is clever _________ you _________ out the problem. [ ]
A. for; to work
B. of; working
C. to; working
D. of; to work