Ex 1: Choose the best answer A, B, C or D to complete the sentences 40. We_____ get the early train. The lessons start early today. A. have to B. has to C. don’t have to D. mustn’t 41. My sister ______ tidy her bedroom. No one helps her. A. have to B. has to C. don’t have to D. mustn’t 42. There’s ___new student in my class. A. a B. an C. the D. _ 43. My mom bought me ____new dress yesterday. _____dress is pink and long. A. a/ a B. an/ a C. the/ a D. a/ the 44. My brother’s got a new games console. ______games console is so expensive. A. a B. an C. the D. _ 45. I learnt a lot of words to improve my _________ A. vocabulary B. money C. grammar D. weight 46. They are looking for two _________teachers. A. ethnic B. native C. communicate D. sentences 47. _______is very difficult for me. I always confuse Past Simple and Present Simple. A. vocabulary B. money C. grammar D. weight 48. The ________flag is red and yellow. A. Vietnamese B. Japanese C. Korean D. French giúp mik vs ạ , chỉ cần ghi câu trl thôi ạ