此处需要填入一个名词或动名词，可选范围缩小到A、B、D和E。因为前面有不定冠词a，故排除复数名词E；这个发现会-找考题网

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【参考答案】

A

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E

单项选择题

A．Britain should not join the EEC.B．Britain should try to benefit from the EEC.C．It is difficult for Britain to live in the EEC.D．It is necessary for Britain to stay in.

A．Britain should not join the EEC.
B．Britain should try to benefit from the EEC.
C．It is difficult for Britain to live in the EEC.
D．It is necessary for Britain to stay in.

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