1.1 really regret this computer - it'suseless .a. buy. b.to buy. c.buying. d. .for buying 4.Some addicts are teenagers are hooked on computer games. a. which. b. who. c. what. d. whose 6.Countryside is not polluted you can breathe there fresh air a. although. b.however. c. therefore. d. as 7.'ls it true that Y Moan was the greatest pop singer of the Ede? ' a. Really? b. how beautiful. c.come on! d. Exactly 9.Last year, my family tradition and traveled abroad during tet is holiday a. broke. b. passed. c. kept on d. handed up