摘要：3．-Look!Everything here is under construction. -What’s the pretty small house that for? A．is being built B．has been built C．is built D．is building 解析:选A.考查时态和语态.语意表明从句中用现在进行时.名词house是动词build的承受者.所以谓语用现在进行时的被动语态.第二句语意为:正在修建的那座漂亮的小房子是用来做什么的?

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