1. why is the air fresher than before?
a. there are fewer cars in the city.
b. there are fewer factories in the city.
c. there is a green belt around the city.
2. what is the boy doing?
a. doing nothing.
b. climbing a tree.
c. cutting his name on a tree.
资源难易程度:★★★★★★★★★★★★★★★
高考资源网版权所有 ©2005-2014
未经许可,盗用或转载本站资料者,本站将追究其法律责任!