12．一What’s in the pencil―case? 一There a pen and three pencils in it．A．be B．is C．a(chǎn)re D．a(chǎn)m 【查看更多】

 

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一What's in the pencil-case?
一There _____ a pen and three pencils in it.

[     ]

A. be
B. is
C. are
D. am

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