下列各句没有语病的一项的是（ ）

You should read the _________ in the car repair manual (手册) carefully before you start to work on it.

Because of the Asian Games in Guangzhou, Lin Dan and Xie Xingfang had to _______ their wedding.

Li Hua,who was busy preparing areport, couldn’t _____ the loud noise, so he kept all thewindows shut all day long.

21．—The earthquake haskilled over two thousand people in Yushu.—________.