题目内容

The number of speech pathologists(who help people who have problems speaking)      double by the year 2012.

A.is expected to B.are expected to C.expects to D.expect to 

A

解析试题分析:考查词组和主谓一致:句意:据估计语言病理学家的数量到2012年将会翻翻。Be expected to do据估计…,排除CD,另外主语是the number of…的数量,谓语用单数,选A。
考点:考查词组和主谓一致

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