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英语单选Aftertheclasswas(),someofthestudentswereaskedtoremain.AattheendBintheendCbytheendDattheendatanend

题目详情
英语单选
After the class was ( ),some of the students were asked to remain.
A at the end B in the end C by the end D at the end
at an end
▼优质解答
答案和解析
be at an end意为结束、穷尽
be at the end (of)意为到(……的)尽头,达(……的)限度
in the end意为最后、终于
by the end of 意为在……结束之前
这句话意为下课之后,一些学生被留下了 所以选A