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6. ―I didn't go to the art show, because I lost my ticket.

一You    have borrowed mine. I didn't go to see it anyway.

A. might       B. need

C. could       D. must

6.    C 考查虛擬語氣。could have borrowed mine表示"本來能夠借我的"。句意:"我沒有參加藝術(shù)展,因為我丟了票。""你本能借我的。反正我也沒去看。"

題目來源:2015全品語法快練高中英語新課標 > 訓練27動詞變化類綜合訓練

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C

Now, we know that if we do not get enough vitamins, we are at the risk of devel?oping a number of diseases. As a result, vita?min supplements(補品),though expensive, are popular with people who worry that they are not get?ting enough vitamins from the foods they eat. But contrary to what many people think,medical experts have found lit?tle evidence that most supplements do anything to improve health or protect against diseases.

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