填空题

It is high time that ____________________(我们采取措施保护环境).

【参考答案】

we took measures to protect the environment

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tobacco

单项选择题

A．Tell the waiter about the mistake.B．Order something else.C．Send back his food.D．Compliment the waiter on the food.

A．Tell the waiter about the mistake.
B．Order something else.
C．Send back his food.
D．Compliment the waiter on the food.

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