-------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have)
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--------asmallbookstoreinthistown.(theyusedtobe,itusedtohave,thereusedtobe,thereusedtohave)--------a
-------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have)
-------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,
there used to have)
-------- a small book store in thistown.( they used to be ,it used to have ,there used to be ,there used to have)
There used to be
used to + 动词原形,表示过去常常,这句话的意思是：这个小镇原来有一家书店.（现在没有了.）
There used to be