请用动词be(am,is,are)填空.1.I( )Bob.2.You( )a student.3.Frank( b )OK.4.Eric( )a boy.5.How( )you?

问题描述:

请用动词be(am,is,are)填空.1.I( )Bob.2.You( )a student.3.Frank( b )OK.4.Eric( )a boy.5.How( )you?
6.How ( )Helen?

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is
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