题目内容
Alexander Graham Bell invented ________ telephone in 1876. ( )
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After watching ____ TV， she played _____ violin for an hour. ( )
Many people are still in ____ habit of writing silly things in ____ public places. ( )
Paper money was in ____ use in China when Marco Polo visited the country in ____ thirteenth century. ( )
She is _____ newcomer to ____ chemistry but she has already made some important discoveries. ( )
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