~.~915(5)句子语法谢谢eeeeeeeeeeeeeeeehesawthingsthathehadnotseenwhilecomingtothechurch.他看到了他来到教堂时所未见到的一些情况1.coming用动名词的原因是什么?仅仅是因为while介词后接名词吗?2.可

Question

~.~915(5)句子语法谢谢eeeeeeeeeeeeeeee
he saw things that he had not seen while coming to the church.
他看到了他来到教堂时所未见到的一些情况
1.coming 用动名词的原因是什么?仅仅是因为while 介词后接名词吗?
2.可否改成he saw things that he had not seen while he had come to the church. ?

Answer 1

1 是时间状语从句的省略.也可以补充完整.he saw things that he had not seen while he came to the church.用动名词的原因是因为主句从句主语一致且主语与came的关系是主动.
2 那不行.如果是had come的话省略形式应该是having come.