问题描述：
There is a post office on Center Street.(变一般疑问句并做出肯定和否定回答)
There is a library on Fifth Avenue.（变复数）
There is a hotel on Bridge Street.( 变否定句 )
There are some pay phone on the street.( 变否定句 )
There are three supermarkets on Renmin Street.(变一般疑问句并做出肯定和否定回答)
There are some apples on the table.（变单数）
快
There is a library on Fifth Avenue.（变复数）
There is a hotel on Bridge Street.( 变否定句 )
There are some pay phone on the street.( 变否定句 )
There are three supermarkets on Renmin Street.(变一般疑问句并做出肯定和否定回答)
There are some apples on the table.（变单数）
快
问题解答：
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