21. American students take part ._______. different activities at recess. A. at B. on C. to D. in 22. .________ do you study in the library after school? - Once a week. A. How often B. How far C. How many D. How long 23. Many young people enjoy _______ community service. A. do B. to do C. doing D. does 24. ________ is your telephone number? A. When B. Which C. What D. How 25. Her birthday is __________ Friday, August 20th. A. at B. on C. in D. of 26. _______you have a test tomorrow morning? A. Will B. Do C. Are D. does 27. She will have a party ._______her birthday. A. for B. on C. in D. to 28. What’s your ________? A. birthday B. day of birth C. date of birth D. birth of day 29. Will he be free? - .________ A. No, he won’t B. No, he doesn’t C. No, he isn’t D. No, he will 30. We will_________ our old friends next Sunday. A. to meet B. meet C. meeting D. meets 31. ..________ you like a cup of tea? A. Would B. Will C. What D. does 32. He looks different ________ his father. A. at B. with C. from D. to 33. Students have two _______ each day. A. 20 - minutes breaks C. 20 - minute breaks B. 20 - minute break D. 20 minutes break 34. The United States’ Library of Congress is one of the .________ libraries in the world. A. larger B. largest C. larger than D. large 35. ._________ novels are very interesting. A. These B. This C. That D. It 36. Vietnamese people usually return to their families _________ Tet. A. in B. on C. for D. during 37. When the clock strikes midnight, colorful fireworks light _________ the sky. A. in B. up C. on D. over 38. You shouldn’t_________ things on the first day of Tet. A. make B. hang C. break D. cook 39. Tet is the _________ time of the year. A. busy B. busier C. busiest D. most busy 40. Tet is the biggest and most important_________ in Vietnam. A. festival B. decoration C. occasion D. tradition