紧急英语问题介词与副词填空He was young,yet his face somehow gave（ ） the i

紧急英语问题
介词与副词填空
He was young,yet his face somehow gave（ ） the impression of age,especially when he was deep in thought.
My introduction （ ）smoking came at an age when most people start to think about giving it up.
This book offers the English language reader an introduction （ ）the history of Britain.
I saw him put on his jacket,pick （ ） his case,and go out.
Lighten（ ） ,would you!She really didn't mean what she said.
.We must learn to lighten （ ）especially in times of difficulties.
It was clear that the school had not communicated （ ） the child's parents as misunderstandings occurred.