—I looked after a group of fifteen French children.—That _________ easy!A．mustn’_刷题宝

题干

—I looked after a group of fifteen French children.
—That _________ easy!

A．mustn’t be	B．mustn’t have been
C．can’t have been	D．wasn’t

上一题下一题 0.64难度单项选择更新时间:2014-12-17 08:41:26

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