The teacher _________ us ________ our names on the papers.A.signed;signB.signed to:signingC.signed to;to signD.signed to:sign
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C解析本题测试sign的用法,关键在于了解sign作“做手势,做信号”是不及物动词,可用于“sign +介词短语”结构,如:He signed to me in.他示意我进去;sign作“签”解时是及物动词,可用于“sign +名词代词”结构.如:Please sign your name here.请在这儿签名.这句意思准“老师示意我们把自己的名字写在试卷上”.