词汇：根据句意和汉语提示，在空格中填入正确的单词（每空限填一词）。（每
小题1分，计7分）
Don’t worry. I have made much  __________ (进步) in learning English.
This is a good shop. It brings us  ___________(极好的) service.
As we know,  __________ (无一人) of us likes pollution.
Our living conditions have              (改善) a lot.
They have been volunteers            （自从）2009.
If you            （不服从）the traffic rules, you may have an accident.
           （虽然）he tried his best, he failed at last.