问题 选择题

________ she ran to the classroom, the teacher had begun the class.

A.What time

B.By the time

C.At the time

D.During the time

答案

B               

             

题目分析:考查连词。句意:到她跑到教室时,老师已经开始讲课了。By the time到……为止,到她跑到教室为止,发生在过去,老师讲课发生在过去的过去,用过去完成时, 故选B项。          

考点 : 考查连词。              

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单项选择题