_____ of the work has been done.
A. Two third
B. Two three
C. Two thirds
The bus will leave at ____ this afternoon.
A. three fifteen
B. three and fifteen
C. three quarters
Mary, what's this ____ Chinese?
A. in
B. with
C. on
Last week, I went to school ______.
A. by the bus
B. by bus
C. on the foot
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