问题

You can hardly imagine the difficulty she had ________ enough evidence to prove the case.[ ]
A: collected
B: to collect
C: collecting
D: have collected
B: to collect
C: collecting
D: have collected
正确答案是:
同类题型
I prefer to be ______ at a hotel with free roomservice and access to the Internet.
Thank you for your help, Linda. You made ________ possible for us to finish the work in time.
It was ________ the old watch that the old man spent the whole afternoon at home.[ ]
—Why did he leave that position?—He_____a better position. [ ]