单项选择题


A．came down
B．came out
C．came up
D．came into
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单项选择题
A．to sitB．seatedC．seatingD．sat
A．to sit
B．seated
C．seating
D．sat
单项选择题
China has to feed a population over four times ______ though its area is only a little larger than the United States.
A．large
B．so large
C．as large
D．more
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