VI. Choose the best answer a, b, c or d to complete the sentence. 1. Air pollution has many effects_________ the environment and living organisms. A. in B. of C. for D. on 2. The volcano has erupted approximately once every ten years_________ 1970. A. since B. in C. from D. for 3. After a severe storm, there is often_________ along the shore that will need to be removed. A. waste B. debris C. lava D. junk 4. In the 1980s, acid rain_________ widespread damage to forests in the areas. A. made of B. resulted in C. led for D. caused by 5. _________ plastic takes so long to break down, it pollutes the land and water. A. Even though B. While C. Since D. Because of 6. If I had the chance to take part in an International summer camp, I_________ very excited. A. am B. was C. will be D. would be 7. _________ do earthquakes usually last? - Less than one minute. A. How strong B. How long C. How often D. How far 8. Niagara Falls is a great natural_________ on the border of the USA and Canada. A. castle B. loch C. spectacle D. Symbol 9. The 2010 Haiti earthquake was the most_________ natural disaster in the history of this country. A. destructive B. permanent C. unique D. awesome 10. A hurricane is heading toward our home town. - _________ A. Thats a relied. B. How interesting! C. Glad to hear. D. Oh my God! 11. I__________ my friends for dinner after work tomorrow. A. meet B. will meet C. am meeting D. will be meeting 12. Hurry up! The conference__________ in twenty minutes. A. begins B. will be begun C. will begin D. will be beginning 13. In 30 years time we__________ in flying cars. A. are travelling B. will be travelling C. are going to travel D. will be travelled 14. __________ longer in the future thanks to medical tech? A. Will people live B. Do people live C. Will people be living D. Are people living 15. Lets meet at ten oclock tomorrow. - Sorry, I__________ at ten oclock. A. am working B. am going to work C. will work D. will be working 16. Good Lord! The engine has stopped. I hope the plane__________ down! A. doesnt go B. wont go C. wont be gone D. wont be going 17. Ill show them my photos when they__________ round for dinner tomorrow evening. A. come B. comes C. are Corning D. will come 18. Ill come over at 8 oclock tonight. What__________ then? A. will you do B. are you doing C. do you do D. will you be doing 19. I havent made any plans for Easter. I__________ at home. A. am staying B. am going to stay C. will probably stay D. will be staying 20. We__________ a picnic next weekend. Would you like to come? A. have B. are going to have C. will have D. will be having 21. John wants to speak with you. -Please tell him that I__________ him as soon as Im free. A. will call B. am calling C. call D. am going to call 22. It__________ when we reach the mountains. Dont forget to take your anorak jacket. A. is snowing B. snows C. will snow D. will be snowing 23. There has been a change to schedule and your flight now__________ at 18.40. A. takes off B. will take off C. is taking off D. will be taken off 24. We__________ a press conference about our new discovery on Tuesday. A. hold B. will hold C. are holding D. will be holding 25. At this time tomorrow I__________ to Canada, so I wont be able to call you. A. am flying B. am going to fly C. will fly D. will be flying