1. I will be ....................... if she manages to sell that motorbike at a high price. a. surprise b. surprised c. surprising d. to surprise 2. Unless you understand, I .......................explain it again to you. a. am b. was c. will d. would 3. If you know where she lives, please let me ....................... a. know b. knew c. known d. to know 4. If he ....................... a student, he will get a discount. a. is b. was c. were d. will be 5. ....................... you are interested in this film, don't go to see it at any cost. a. If b. Unless c. Because d. So 6. If you like that book, I will give it ....................... you as my present. a. for b. from c. at d. to 7. If you live in this small town, you ....................... earn much money. a. aren't b. couldn't c. can't d. didn't 8. If you have ....................... money, you can travel abroad this summer. a. a lot of b. many c. lot of d. a lots 9. If you are a student, you can get a discount ....................... books. a. on b. in c. at d. for 10. I won't go unless you ....................... me the money back. a. ro pay b. paid c. paying d. pay