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2017高考英语：二轮单项选择+冠词专练02（答案、解析） 第***套 16．--- It was ____ of you to share your food with me. ---That’s all right. A．sharp B．dull C．mean D．generous 17．---Tom graduated from college at a very young age. ----Oh, he _____ have been a very smart boy by then. A．could B．should C．might D．must 18．He showed signs of exceptional skill at chess, but _____ enough , maths is not his thing. A．naturally B．strangely C．foolishly D．badly 19．A gift is a ____ of what a relationship means to us. The best gifts meet the needs of the receiver. A．signal B．means C．symbol D．record 20．There ____ a lot of visitors in his house , he has no time to talk with you. A．have B．is C．are D．being 21．---Tom didn’t pass the exam. ---____ ? He was studying hard all the time! A．When B．What | 
