His uncle went abroad in 2010, and __________ since.
A. had not been heard of B. has not been heard of
C. had not heard of D. has not heard of
It's a rule for all the students to _____ their places ahead of 5 minutes waiting for the class to be started.
A．take up B．pick up C．keep up D．give up
On his way home, he found a wallet ____ on the ground, which he picked up and ____ in his schoolbag.
A. laid; lay B. laying; laid C. lying; laid D. lain; lay
Could it be in the restaurant in ____ you had dinner with me yesterday ____you left behind your keys and wallet?
A．which；which B．which；that C．that；where D．where；where
There is no need _______ and it’s no use __________ there too early.
A. to rush; arriving B. to worry; to arrive C. worrying; arriving D. to rush; to arrive
The air is deadly polluted because some factories don’t __the rules to protect the environment.
A. appreciate B. regard C. honor D. respect
