Section Ⅳ Grammar & Writing
动词ing形式的完成式作状语&动词ing与动词不定式作宾语
阅读下列句子，体会黑体部分的用法
1．Having lost all my friends, I felt shy and lonely at my new school.
2．Having left something in the cloakroom, I went inside to get it.
3．This weekend, having thought about the situation for a while, I decided to ask Roy about the theft.
4．The girls stopped talking when the teacher came into the room.
