To my great disappointment, my best friend left the city I could have a word with her.
| A．before | B．after |
| C．while | D．until |
_______are the days when we used foreign oil
A To goB Going C Go D Gone
.It is the house________I have ever lived________is under repair
A which, that B that ,which C in which ,where D where, that
___________harder, he would have succeeded in the college entrance examination
A He worked B He had worked C Had he work
edD Did he work
__________ abroad for two years ,he will come back within two weeks
A Having studied B Studied C To studyD Studying
A boy rushed in_____________he opened the door
A the momentB for the momentC for a momentD at the moment