—Look! The light in Mr. Brown’s office is still on. He ___________ be working there.
—It ___________ be him. He has gone to America.
A. must；mustn’t B. can；mustn’t
C. must；can’t D. can；can’t
It is a pity that we have to ___________ the school trip because of the rainy days.
A. set off B. go off C. put off D. take off
Mr. Green will arrive here and give us a speech ___________ the morning of December 22nd.
A. in B. on C. at D. before
People usually like the TV channels with funnier programs but ___________ advertisements.
A. fewer B. less C. few D. little
A little wine will not be ___________ to your health. Just don’t drink too much.
A. helpful B. harmful C. awful D. careful
—Did you buy ___________ for your parents when you came back from London?
—Yes. I bought a jacket for my father and a handbag for my mother.
A. something B. nothing C. everything D. anything
