Everymorning,weareasked________tak

发布时间：2020-07-10 05:46:14

Every morning, we are asked ________ taken our temperatures.













A.if we have












B.if have we











C.if we had











D.if had we

网友回答

A解析if引导的宾语从句意为“是否”，这时如果主句是一般现在时态，从句可用任何适当的时态，主句为过去时态时，从句应用过去的某种时态。
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