中译英，用括号里的词

1、我祖父在70多岁时开始操作计算机（in one's of）
-> My grandfather began to operate a computer in his age of over 70.

2、上海给我留下了极好的印象（make in）
-> Shanghai has made a terrific impression in me.

3、学生们积极参加了这次的讨论（take part in）
-> The students took active part in this discussion.

4、他为什么上课迟到没人知道（the reason why）
-> No one knows the reason why he was late for the class.

5、她的英语比班上的其他女生都好（better than）
-> She is better at English than any other girls of the class.

6、他太太和孩子们都被邀请参加这次聚会（both....and）
-> Both his wife and children were invited to this party.

7、他对此事一无所知（know noting about）
-> He knew nothing about this matter.

8、自从他出生起我就看着他长大（since）
-> I have witnessed his growth since he was born.