填空题

I’m (extreme) ______ sorry to have kept you waiting so long.

【参考答案】

extremely
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填空题
According to the doctor, fresh air is (benefit) ______ to one’s health.
单项选择题
A．They had lost their way.B．They were told it would rain.C．They were caught in the rain.D．They had taken an umbrella.
A．They had lost their way.
B．They were told it would rain.
C．They were caught in the rain.
D．They had taken an umbrella.
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