7. Go and get your glasses. It's (there, where, there where, where there) you left them. 8. If people stop using dynamite for fishing, a lot of sea creatures wil be well (preserve, preservation, preserved, preservative). 9. You can send me a letter if you want to, but your phone call is (good as enough, good than enough, enough good, good enough) for me. 10. He does morning exercises regularly (not, without, so that not, in order) to improve his health. 11. Our new neighbors are quite nice (as though, in spite of, despite, although) they are sometimes talkative. 12. Using public transport is an effective way to (reduce, increse, continue, gain) traffic jam and pollution. 13. (Polluting, Pollution, Polluted, Pollutes) air is one of the main problems nowadays. 14. I am going to wait right here until Jessica (comes, will have come, is coming, came). 15. Bananas (is exported, was exported, are exported, has been exported) to Europe every year. 16. These students never go to the theater, (do they, don't they, are they, aren't they)? 17. She sings (the most beautiful, the most beautifully, the more beautiful, the more beautifully) among the singers I have known. 18. Minh had a terrible headache. (Therefore, But, However, Although), he still wanted to go to school 19. Jupiter is (the larger, larger, largest, the largest) planet in the solar system. 20. (What, What all, What that, All what) he says in his report is a very interesting question.