题目内容

【题目】The river ________ at least 50 meters in width, but the ten-year-old boy can swim across it within minutes.

A.is measuredB.measures

C.is measuringD.is being measured

【答案】B

【解析】

考查时态。句意:这条河的宽度至少有50米,但10岁的小男孩可以在几分钟内游过。此处measure(测量,估量)是不及物动词。这里讲的是一个事实,句子用一般现在时态,主语是The river,是单数第三人称,故答案为B

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