Before you leave the office, __________

天天题库2019-12-17  13

问题 Before you leave the office, __________ all lights are out.

选项 A.see whichB.seeing thatC.to see thatD.see to it that

答案D

解析考查祈使句。句意为“在你离开办公室前,__________所有的灯都已关闭”。根据句意可知,后半句应为祈使旬,表示一种命令或建议,因此,空格处应填入动词的原形形式,see to it that“确保”,其他选项形式皆不符合题意,故选D。
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