问题描述:
I smiled at him before walking through the girls' locker room door.
before walking through the girls' locker room door中before是介词还是连词?
walking through the girls' locker room door是省略了i was的从句
还是现在分词短语或者被常规语法书称为动名词的短语?
before walking through the girls' locker room door中before是介词还是连词?
walking through the girls' locker room door是省略了i was的从句
还是现在分词短语或者被常规语法书称为动名词的短语?
问题解答:
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