I can hardly imagine the difficulty she had ______ enough evidence to prove that she was innocent.
| A．collected | B．to collect | C．to have collected | D．collecting |
It is time for class to start. The teacher __________ be in the classroom now.
A. can B. should C would D. shall
The opening day of Expo 2010 Shanghai Chi
na we have been forward looking to_____ to arrive.
| A．being | B．be | C．is | D．will |
_________the peace talk between the two countries will break down depends on your attitude.
| A．If | B．Whether | C．Weather | D．That |
It was __________ you had done ________made it possible for you to improve your English.
| A．that/ that | B．that / what | C．what/ what | D．what/ that |
—May I use your computer?
—Sure, _____________
| A．cheer up | B．come on | C．go ahead | D．nothing |