填空题

It is essential that we (be) ______ informed of your plans in advance.

【参考答案】

be/should be
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单项选择题
A．That’s all right.B．Not too bad.C．Don’t mention itD．You are welcome.
A．That’s all right.
B．Not too bad.
C．Don’t mention it
D．You are welcome.
填空题
The local government is trying (attract) ______ high-tech companies to the area.
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