题目内容

【题目】They surveyed the areathe tomb faced south.
A.make sure
B.making sure
C.to make sure
D.makes sure

【答案】C
【解析】句意:他们勘测了这个地区以保证坟墓朝南。句中survey是句子的谓语,make sure the tomb faced south表示目的,是状语,所以用不定式,所以答案是C。

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