单项选择题

—I'm sorry to keep you waiting. —Oh, not at all. I ______ here only a few minutes.

A．have been
B．had been
C．was
D．will be
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单项选择题
The missing boy was last seen ______near the river.
A．playing
B．to be playing
C．play
D．to play
单项选择题
—Have you ______been to our town before —No, it's the first time I ______here.
A．even; come
B．even; have come
C．ever; come
D．ever; have come
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