题目内容

You should make an ____ plan in case anything unexpected happens.
A．activeB．alternativeC．convenientD．economic
B
考查词义辨析。 Active 积极的，alternative 可供选择的， convenient 方便的，economic 经济的，句意：你应该做出一个可供选择的计划，以防预想不到的事情发生。所以选B。
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