1. He's not really interested in ... on the farm A. to work B. work C. working D. worked 2. Could you ... me how to use this mobile phone? A. say B. show C. explain D. give 3. When you phoned me, I ... my homework. A. was doing B. did C. am doing D. have done 4. The air is polluted ... there is too much traffic. A. because B. therefore C. however D. but 5. Can you help me find the man ... saved the girl? A. which B. who C. whom D. whose 6. Lan didn't come to the party because she had to look ... her younger brother. A. at B. for C. forward D. after 7. We felt ... when the New Year's Eve was coming near. A. excitement B. excited C. excitedly D. exciting 8. Tet is a festival ... occurs in late January or early February. A. what B. which C. when D. where 9. The children have to come back before dark,...? A. haven't they B. do they C. don't they D. have they 10. They enjoy ... computer games. A. play B. to play C. played D. playing 11. We have written to each other ... last Christmas. A. for B. since C. until D. before 12. Were I your age, I ... differently. A. will do B. may do C. did D. would do 13. We should ... all the lights before going out. A. turn on B. turn over C. turn off D. turn up 14. They decided to go ... it was raining heavily. A. and B. but C. though D. since 15. Three thousand cars ... next year. A. produced B. were produced C. will produce D. will be produced 16. Traffic rules _______ by all people. A. must be obeyed B. must obey C. must obeyed D. must have obeyed 17. They are playing _______ Liverpool players. A. against B. versus C. to D. of 18. There you are! I _______ for two hours. Where have you been? A. am waiting B. wait C. waited D. have been waiting 19. The weather was _______ bad _______ we couldn’t go out. A. such/that B. too/that C. such a/that D. so/that 20. It took him three weeks _______ how to swim.