Excuse me, sir. You ________ open the door before the car stops.
A. needn’t B. don’t have to C. may not D. mustn’t
It is said that more schools ________ in Linyi next year.
A. will be built B. were built C. have built D. will build
I didn’t hear your call because I__________to music at that time.
A. listen B. will listen
C.am listening D. was listening
The 3rd China's Got Talent (中国达人秀) gives the child a chance to show his special________.
A.ability B．behavior
C．education D．background
—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.
A. hard B. harder C. hardest D. hardly
Usually, we don’t know how important something is ________ we lose it.
A. or B. until C. if D. after
