问题描述:
When she came into the living room,her mother was reading a letter from her father.
这个句子中哪个是主句哪个是从句?怎样分辨一个从句中,哪个是主句哪个是从句?
这个句子中哪个是主句哪个是从句?怎样分辨一个从句中,哪个是主句哪个是从句?
问题解答:
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