单词填空（共10小题；每小题1分，满分10分）
His ______ (以前的)experience of this kind of job can help him a lot.
He said that light ______ (传播 )much faster than sound.
His ______ (流利) in English helped him get the job.
The two brothers dress ______ (类似)
The soldiers show perfect ______ (纪律) in face of the earthquake.
Somebody ______ (遗弃 ) a stolen car on the road.
When it ______ (接近) lunchtime, the students can not wait to rush to the dining hall.
Few people ______ (活过)the cruel war.
Metals expand when heated and ______ (收缩) when cooled.
My computer has ______ (崩溃). I’ll have it repaired.