分别是：
1.The scientists conducted a survey on air pollution.
2.He inquired the teacher of his question about how to learn English better.
3.He has the flu infected from her.
4.The water is contaminated by the toxicant.
5.There is a school nearby.
6.The water pump works well in the flooded area.
7.The teachers are busy dealing with the homework.
8.The government announced that the city was imposed a curfew.
9.The flu of the boy is serious.
10.You are an expert in Enhlish!