基本词组与搭配。
1.20年以后 ______________________
2.live to be 200 years old ________________________
3.更多的污染 _______________________________
4.less free time _______________________________
5.更多的树 _________________________________
6.a sports car _________________________________
7.在电脑上学习 _____________________________
8.use the subways less __________________________
9.上大学 ___________________________________
10.space station _______________________________