单项选择题

A．at
B．back
C．in
D．to
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单项选择题
A．would comeB．cameC．were comingD．have come
A．would come
B．came
C．were coming
D．have come
单项选择题
A．in factB．in seriousC．in earnestD．in truth
A．in fact
B．in serious
C．in earnest
D．in truth
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