Hewalkedintotheroom,pickedupaBook.这句话为什么walk和pick要加ed是不是表伴随状态

Question

He walked into the room,picked up a Book.这句话为什么walk和pick要加ed是不是表伴随状态

Answer 1

你的句子少了连接词and:
He walked into the room AND picked up a book.-------表“并列”,这样就对了.
或者是：Hw,having walked into the room,picked up a book.------- 这是分词结构做时间状语.
或者是：After / when he (had)walked into the room,he picked up a book.-------这是时间状语从句.