根据句意，用所给单词的适当形式填空。

小题1:The job is so boring that one _________ (twelve) of the workers like it.

小题2:_________ (peace) and happily in the chair sat the old lady.

小题3:If you are in a blue mood, you can do your hobbies to cheer ________ ( you) up, boys.

小题4:_______ ( silent ) in the classroom made everyone nervous.

小题5:This is one of the most famous        (hero) names. It is often seen in newspapers.

参与细胞周期调控的抑癌基因是（）

A.p53

B.PTEN

C.MSH2

D.DCC

E.BRCA