问题
选择题
You can't fancy what great trouble they have _______ the problem ________.[ ]
A. to solve; being discussed
B. solving; discussing
C. to solve; to discuss
D. solving; being discussed
答案
答案:D
You can't fancy what great trouble they have _______ the problem ________.[ ]
A. to solve; being discussed
B. solving; discussing
C. to solve; to discuss
D. solving; being discussed
答案:D