The girl had a short rest and did her homework ______ she re

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The girl had a short rest and did her homework ______ she reached home.
A.after \x05B.before \x05C.when \x05D.since
要合理的理由,

这题选C
首先排除B和D,意思不对
其实就是在A和C中间选一.从意思上来说,A和C都可以,这里就是时态的差别了
假如用after的话,表示从句中reach home这个动作,是发生在have a short rest 和do homework之前,是过去的过去,所以要用过去完成时：
The girl had a short rest and did her homework after she had reached home.
所有只有C选项意思和时态都可以,when 表示两个动作同时发生,从句和主句的时态是一致的（除非表示将来时）.

The girl had a short rest and did her homework ______ she re .The girl had a short rest and did her homework ______ she r 1,The girl had a short rest and did her homework ______ she The girl had a short rest and do her homework____she reached The boy had a rest and did his homework after he got home.这句 he had a rest and did his homework ___he reached home这个句子中用a She came into the house ,and had a rest . They ______(sit) at the table and had a rest She said she had forgotten( )her homework A did B do C doing She is a ______(care)girl but she often does her homework ve she didn't finish her homework yesterday ,did she?----______ she did her homework after school,______?(改为反义疑问句)