When you go outing with the children, you must see to ______that they are safe.A_刷题宝

题干

When you go outing with the children, you must see to ______that they are safe.

A．them

B．everything

C．it

D．yourself

上一题下一题 0.64难度单项选择更新时间:2012-09-16 09:22:27

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