There is one mistake in each of the following sentences. Find and correct it.
41. There is fewer work in the evening than there is in the morning. A. B C D
42. My Dad always has a three-weeks vacation. A B C D
43. Mr. Ba soon got used to travel to work by bicycle. A B C D
44. The doctor says you should spend a little time to play video game. A B C D
45. The public library in the city has thousand of good books. A B C D
46. What does the new student like ? - Oh, she is tall and beautiful. A B C D
47. Ba is in class 7A and he enjoys the school very much. A B C D
48. My father always has a lot of houseworks to do. A B C D
49. There is a ten-floors building in front of my house. A B C D
50. What is Hoa unhappy? - Because She misses her family very much. A B C D
41. fewer -> less
42. three-weeks -> three-week
43. travel -> travelling
44. to play -> playing
45. thousand -> thousands
46. does -> is
47. the -> his
48. housework -> housework
49. ten-floors -> ten-floor
50. What -> Why