一、根据首字母提示填空
1.The girl has a talent for painting. She has won two n______ prizes.
2.I saw a car accident t______ place when I was on my way to the supermarket.
3.O______ 200 students take part in the competition.
4.The tea leaves r______ in the water for some time and the water turned green.
5.The milk s______ terrible after being put for a long time.

ational ; aking ; ver/Only ; emained ; mells/smelt

二、用所给单词的正确形式完成句子
1. He was a famous ______. He ______ many useful ______ during his life including phone. (invent)
2. The water is ______ and you can drink ______ water later. (boil)
3. There was a car ______ on Fangcao Street, and I saw it ______ this morning. (accident)
4. China is a ______ with a long history. Its ______ anthem was composed by Nie Er. (nation)
5. All the adults was killed in the accident, but the two-year-old boy ______ (remain) alive.

inventor ; invented ; inventions ; boiling ; boiled ; accident ; accidentally ; nation ; national ; remained