II. Circle the correct letters (A, B, C or D) to complete each of the following sentences. the world is growing. B. at C. in D. of collecting the empty bottles? Yes. That's a great idea. @ B. What CHow about days are they going to stay here? - For three days. CHO B. How many 7. 5. The population A. about 6. 8. What A. Let's A. How much 11. We A. happen 9. "I'd take a box of coffee."-" A. Here you are 10. That building is the A. far soon? A. should 12. Can you shopping A. play B. happened B. Here are you. B. does How often C. You are here. of the two. C. are happening D. is happening B. farer C. farther recycle waste things in the factory. B. should to D. Why don't we D. How long D. You here are. D. farthest C. shouldn't to D. ought for me, Nam? - Sure. What do you need? C. help D. 0