题目内容：

英语高手请进.有几道单项选择想请教.
（1）（ ）last year and is now earing his living as a newsboy.
A,He left the school B,He has left the school C,He had left school D,He left school 我知道是选D 那是不是加了个the 就是指毕业的意思啊?
（2） the sun （ ）when we got there?
Araised B had raised C had risen D rises
（3）this book ( )everybody.
这道为什么要用 is known by 为什么要用by?
（4）put on 和took on 有什么区别,不是都是穿上的意思么?
用在单选里怎么选?
（5）He will pay a visit to the exhibition when he ( )time .
A has Bwill have C had D is going to have
这道又为什么选A而不选c?