题目内容

13. I know that it will be difficult to pick him out in such a crowd  but if you    happen to see him, give him this packet.

A. would     B. might

C. should   D. could

13.   C考査情态动词。"if+主语+ should+动词原形"是一个真实的条件句,常常用于表达礼貌地请求或建议。例:①If you should see Celia, give her my best wishes.②If you should be interested in our offer, please contact us.

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