一Mary said Mark started the fight and that David simply defended himself.
一 I don’t believe it. Those two hate each other. Anyway, ___________.
A. It takes two to tango.
B. Two wrongs don’t make a right.
C. Attack is the best means of defense.
D. You can take a horse to water, but you can’t make it drink.
Not until he questioned the manager several times ___________ that the engineer-in-chief had gone to an important meeting.
A. did he tell B. he told C. was he told D. he was told
Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.
A. something B. anything C. whatever D. what
Every solid object ______ reflect a sound，varying according to the size and nature of the object．
A. must B. shall C. will D. should
I would be happier if you did more studying while you are free, but you ___________.
A. don’t B. didn’t C. wouldn’t D. weren’t
The temperature on the inside of the car can be adjusted to suit the driver’s__________ in winter and summer.
A. pleasure B. preference C. measurement D. selection
