牛津上海版九上 Unit 4 Computers 作业2（含答案）.docx
牛津上海版（试用本）同步练习
一、单项选择（共15小题）
1. The weather in Beijing is colder than _____ in Shanghai.
A.that B.it C.these D.the weather
2. Pollution is getting _____ in some big cities.
A.serious and serious B.more serious and serious
C.more and more serious D.seriouser and seriouser
3. The tiger is very _____,...