27. Radio and television are quite useful because you can __________ .
A. see what is happening in the world
B. hear what is happening to the world
C. know what the world is like
D. see what the people on the earth are doing'
第1题:
This is very important. You_____remember to shut down your computer every
evenlng。
A. ought
B. need
C. must
D. can
第2题:
A.mustn't
B.can't
C.needn't
第3题:
A.Must; needn’t
B.Can; can’t
C.May; mustn’t
D.Can; mustn’t
第4题:
A、*/saw/didn’t
B、Did/see/didn’t
C、Did/saw/didn’t
D、id/see/did
第5题:
What's ( )job? Are ( ) British?
A. your, your
B. you, your
C. your, you
第6题: