Which do you prefer to keep in touch with your friends, QQ ____ Facebook?
A. and
B. but
C. or
D. so
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John wasso sleepy that he could hardly keep his eyes ____.
A. opening
B. be opened
C. to open
D. open
You can get 3 to 10 yuan off the fare if you ____ a taxi through Didi Dache now.
A. book
B. booked
C. are booked
D. will book
Lilly, you____ play football in the street. It’s dangerous!
A. can’t
B. needn’t
C. may not
D. mustn’t
This tall building has ____ floors. And Mike lives on the ____ floor.
A. twelve; twelve
B. twelfth; twelfth
C. twelfth; twelve
D. twelve; twelfth