Choose the best answer A, B, C or D to complete the sentences. 1.​_________ the first days of Tet everyone tries to be nice. ​​A. To​​​B. For​​​​C. On​​​D. At 2.​These photographs were taken _________ a very good camera. ​​A. on​​​B. in​​​​C. at​​​D. by 3.​I congratulate you _________ your success. ​​A. in​​​B. on​​​​C. with​​D. at 4.​Many people go to the pagoda to pray _________ a happy year. ​​A. for​​​B. at​​​​C. in​​​D. on 5.​I bought this shirt _________ for my brother.​​. ​A. for​​​B. with​​​C. at​​​D. on 6.​We went to the Flower Festival _________ Dalat last month. ​​A. about​​B. to​​​​C. in​​​D. by 7.​I have breakfast _________ 6:30 every morning. ​​A. at​​​B. on​​​​C. for​​​D. in 8.​The room was full _________ people.​​. ​A. up​​​B. on​​​​C. of​​​D. at 9.​There are usually a lot of party _________ New Year’s Eve.​​. ​A. until​​B. on​​​​C. in​​​D. at 10.​My cat is very fond _________ fish. ​A. of​​​B. in​​ ​​C. about​​D. at ( giúp mk vs mk cần gấp)