1.十月一日是我们的国庆节。

To many of his teachers,Thomas Edison was not a good student　 1　 school,as he asked a lot of 　2　 that had nothing to do 　3　 his lessons.His teacher said he wasn't very bright and that he wasn't worth　 4　 .He had to leave school after only three months.That was all the school education he ever　 5　 .

His mother,however ,had been a teacher before she married.She　 6　 him at home.The boy was soon reading books　 7　 grown-ups.He showed special interest in science.

By the time he　 8　 ten , he was already doing experiments in chemistry.He 　9　 vegetables in his garden and sold them to　 10　 the chemicals he needed.

20.(　　 )Three officers narrowly escaped　　　　　　 in the hot battle.

A.have killed　　　　　 B.to kill

C.to be killed　　　　 D.being killed

19.(　　 )You have　 　　　　your hair cut every other week.

A.had　 B.to have　　　 C.got　　　 D.been

18.(　　 )NO sooner had he finished his talk　　　　 he was surrounded by the workers.

A.as　　 B.then　　　　 C.than　　　 D.when

17.(　　 )I　　　　　　 English for five years now.

A.was studying　　　　 B.have been studying

C.studied　　　　　　　 D.am studying

16.(　　 )　　　　　　 the letter,he went out to post it.

A.Writing　　　　　　　 B.Being written

C.Having written　　　 D.Written

15.(　　 )The boy　　　　 his father.

A.look like　　　　　　 B.is loved

C.is liked　　　　　　 D.is like

14.(　　 )He didn't make any mistake.I didn't make any mistake, 　　　　　.

A.either　　　　　　　 B.also

C.too　　　　　　　　　her

13.(　　 )If you wave your book in front of your face,you can feel the air 　　　　　　against your face.

A.moved B.moving　　　 C.moves　　 D.to move