II/ Choose the best answer:(1) 11. It is very dangerous …. in the polluted environment.A. to live B. lives C. living D. live 12. Our ………….. resources are limited so we should recycle all used things. A. nature B. natural C. naturing D. naturally 13. His car is the same color …. my uncle’s.A. alike B. as C. like D. to 14. This ruler ….. of plastic. A. make B. made C. is making D. is made 15. I take part ….. most youth activities of my school.A. in B. of C. on D. at 16. My mother enjoys_________ traditional food for our family, especially at Tet holiday. A. cook B. to cook C. cooking D. cooked 17. My father sometimes goes _____ in the forests.He’d like to findsome more food for our family. A. hunt B. hunting C. to hunt D. hunted 18. Look! Some children are ____________the buffaloes. A. picking B. herding C. driving D. playing 19. The sky is _______here in the countryside because there are no buildings to block the view. A. tidy B. close C. dense D. vast 20.Is living in the city _________ than living in the country? A. more convenient B. as convenient C. most convenient D. so convenient