成人英语三级

单选题 The shortage of energy is getting worse. It __________ an immediate solution.

A.calls off
B.calls up
C.calls for
D.calls at

参考答案:C进入在线模考
【参考译文】能源缺乏问题越来越严重,需要立即解决。
【答案解析】本句考查call动词短语的用法。call for,要求,需求,如:This invitation does not call for an answer(这张请帖不要求答复)。因此C最符合题意。call off,取消,如:“The football match was called off on account of rain(足球赛因下雨取消)。call up,打电话,如:“I’ll call you up as soon as I get home(我一到家就给你打电话)。call at,拜访,如:We called at John’s house yesterday(昨天我们到约翰家拜访)。

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