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
You may have (free) ______ of action in dealing with the matter; do exactly what you think best.
单项选择题
A．No, it’s his.B．It’s mine.C．Yes, it is my sister’s.
A．No, it’s his.
B．It’s mine.
C．Yes, it is my sister’s.
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