He was warned ________ the dangers he would have to face.A．onB．towardsC．ofD．at_刷题宝

题干

He was warned ________ the dangers he would have to face.

A．on

B．towards

C．of

D．at

上一题下一题 0.64难度单项选择更新时间:2016-12-09 04:15:01

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