英语四级
单选题
A．assure
B．ensure
C．require
D．enable
参考答案：B进入在线模考
【解析】选[B]。语义衔接题。[A]assure用来表示向某人保证某事将要发生，既可以用来确证某事，也可以表示使某人确信，其宾语通常是人或人称代词，后不能直接跟that从句，其常用结构为assure sb．of sth．；[B]ensure指使某行为 或某件事的结果得以保证，后可以直接跟that从句，并可以用复合宾语，常用结构为ensure sb．sth．/ensure+that从句。 此空后为that从句，故答案为[B]。
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