题目

短文改错I will never forget my experience during the shanghai Expo,that has disturbe
I will never forget my experience during the shanghai Expo,that has disturbed me a lot.it was a saturday noon but many visitors were having a lunch on the grassland.I saw a foreign couple and a Chinese couple who have just sinished their lunch.Without some hesitation ,the chinese couple threw their leftover food on the grass.Astonishing,the foreign couple saig,"it's no good damaging the environment by littering carelessly."The word of the foreign couple struck my mind.It is time that we strengthen our awareness of environmental protection.The phenomnon for spitting and littering in public places should banned completely.

提问时间：2021-04-01

答案

I will never forget my【 experience--experiences】 during the shanghai Expo,【that--which】 has disturbed me a lot.it was a saturday noon 【but--and】 many visitors were having 【去除a】 lunch on the grassland.I saw a foreign couple and a Chinese couple who 【have--had】 just sinished their lunch.Without 【some--any】 hesitation ,the chinese couple threw their leftover food on the grass.【Astonishing--Astonishingly】,the foreign couple saig,"it's no good damaging the environment by littering carelessly."The 【word--words】 of the foreign couple struck my mind.It is time that we 【strengthen--strengthened】 our awareness of environmental protection.The phenomnon for spitting and littering in public places should【加be】 banned completely.