Mr. Smith insisted that his book _______within three days.
| A．returned | B．would be returned | C．should return | D．be returned |
The 2010 Shanghai World Expo is well worth ______.
| A．visit | B．visited | C．to visit | D．visiting |
I am interested in traveling. It is ______ but ______.
| A．interesting; tiring | B．interested; tired |
| C．interesting; tired | D．interested; tiring |
The windows haven’t cleaned for a long time. They need ______.
| A．to clean | B．to be cleaned | C．cleaning | D．B and C |
I can’t help being touched_____ I see the photo of the little Afghan girl crying over her mum’s body
| A．each time | B．at each time | C．each time that | D．each time when |
If a computer crashes，you will lose the file you _____ on if you don’t save it early enough.
| A．are working | B．work | C．will work | D．worked |