(cho mình xin thêm câu giải thích cho mỗi câu nhé! cám ơn!) 13. Do you often send ............to your friends? A. greetings christmas ; B. greetings christmas ; C. christmas greeting ; D. christmas greetings 14. The report shows..... .........the rice-cooking festival was held A. what ; B. in what ; C. how ; D. which 15. She said that she ................ swimming in the sea in the fall A. has like ' B. likes ; C. liked ; D. was liking 16. The leader said that he ...................... to award the prize to you A. is pleasing ; B. was pleasing ; C. is pleased ; D. was pleased 17. Christmas songs ................ for people eight hundred years ago A. are performed ; B. performed ; C. perform ; D. were performed 18. He said that he would come to see me.............. A. the day next ; B. the following day ; C. the next day ; D. B or C 19. She asked me .............I enjoyed myself A. did ; B. if ; C. have ; D. do 20. The contest .............. since 2.00 p.m A. finished ; B. has finished ; C. has been finished ; D. was finished 21. He .............. late last week A. always gets up ; B. was always getting up ; C. was getting 22. We go out............... A. on christmas ; B. at christmas day ; C. in christmas ; D. on christmas day 23. The bicycle........... in Vietnam is very cheap A. making ; B. is made ; C. was made ; D. made 24. You should .............sure that you are good students A. do ; B. make ; C. be made ' D. be done