Nobody is here; they must ___________ home.
A. go
B. went
C. have gone
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The food smells good. I can’t wait ________.
A. taste
B. to taste
C. tasting
Our boss is rather busy. You’d better ____________ an appointment with him.
A. take
B. get
C. make
Light travels faster than ________.
A. sound
B. sounds
C. a sound
After a big meal, you should take_____.
A. rest
B. a rest
C. the rest