The most favorite room is the tidy study with a fireplace, we can watch TV and enjoy the nice scenery outside.
| A．where | B．when | C．that | D．which |
Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
| A．since | B．before | C．after | D．when |
The girl__________ on the ground __________to me that she had___________ the book on the shelf.
| A．lying; lay; laid | B．lay; lied; laid |
| C．lie; lied; lay | D．lying; lied; laid |
--Did Mary come to your birthday party?
--No. I __________ her, but she was away on business.
| A．would like to invite | B．would have liked to invite |
| C．must have invited | D．could invite |
All the preparations_____, we're ready to start.
| A．made | B．being made | C．having made | D．have been made |
--Do you know when the Chinese custom_________ from?
--It's hard to say. But its characteristics__________ the Tang Period.
| A．began; prove | B．started; show |
| C．is; appear | D．dates; suggest |