The teacher explained ______ once again.A．us the problemB．for us the problemC．th

题干

The teacher explained ______ once again.

A．us the problem	B．for us the problem
C．the problem for us	D．the problem to us

上一题下一题 0.65难度单项选择更新时间:2019-06-08 01:47:04

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