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d B. worse C. well D. better 3. There will be no pollution on Mars, __________ ? A. will it B. won’t it C. will there D. won’t there 4. Who can help me _________ my English? A. in B. of C. with D. on 5. ____________ of the students in our class are boys. A. Three four B. Third four C. Three fourths D. Third fourth *6. Now the air in our town is __________ than it used to be. Some things must be done to stop it. A. very good B. much better C. rather bad D. even worse 7. The fish smells __________. Please throw it away. A. good B. well C. bad D. badly **8. The number of students in my class _______ 48. And a large number of them _________ to school by bike. A . is, go B. are, go C. is, goes D. are, goes 9. I like playing_______ football, but I don’t like playing ______ guitar. A. the, / B. the, the C. /, the D. /, / much is the shirt, Ted? I ten dollars on it yesterday. A. cost B. spent C. paid D. took * by the year 2100, people will be able to tr