______ the school, I saw his parents____ for him at the school gate.A．At reachin

题干

______ the school, I saw his parents____ for him at the school gate.

A．At reaching ; waited	B．On reaching; waiting
C．At arriving; waited	D．On arriving; waiting

上一题下一题 0.65难度单项选择更新时间:2017-07-01 12:02:34

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