you use water economically, we won't have enough fresh water to use in the future. С. Весаuse 5. B. Unless D. Although A. If 6. You never go to school late, B. don't C. do you D. did you A. are you you ay 7. The volcanic eruption in the Philippines in 1991 was A. the world largest one. B. the largest of the world D. the world's largest C. the largest world syse 8. People know clearly that cars cause pollution _they still want to use them. B. but C. though D. therefore A. because 9, That boy had no difficulty A.to get dressed ay's Laf 10. The children were fascinated on his own. D. getting dress C. to get dressing the toys in the shop window. С. by B. getting dressed D. for A. about В. in to the world's development. 11. By learning English, people can have B. success D. acquaintance C. access work in the fields bring us food everyday C. who A. touch 12. The men and the cattle D. whose A. that B. which 13. Let's go to the pop concert! –". A. All right D. Don't mention it. C. Yes, please the central highlands. С. in B. We go 14. There will be thunderstorms B. above D. over A. on