填空题

It’s high time that we (do)（）something to stop pollution.

【参考答案】

did

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热门试题

单项选择题

A．They decide to watch the game together.
B．They decide to go to the cinema.
C．They decide to do different things separately.
D．They decide not to do anything.

填空题

In the old days, the children (take good care of)（）by the mother because she did not work outside the house.