46. I was late for school this morning because my alarm clock didn’t ……… 
A. go on  B. go off  C. go away  D. go up 
48. I was born and grew up on the ……………….. of the Red River. 
A. shops  B. restaurants  C. offices  D. banks 
49. Mr. Lam goes to work on foot once a week. It means he ………… walks to work. 
A. never  B. sometimes  C. often  D. usually 
50. My aunt is a ……………. teacher. 
A. history  B. historic  C. historical  D. historian 
51. “……………… do you get to school ?” “ By bike.” 
A. What  B. How  C. How often  D. How far 
52. When I was a child, I usually ………….. fishing with my brother. 
A. go  B. went  C. gone  D. use to go 
53. We ………………… dinner at home on Saturdays. 
A. haven’t had  B. didn’t had  C. aren’t have  D. don’t have 
54. Are you contented ………………….. your present job, Mrs. Tuyet? 
A. to  B. for  C. with  D. of 
55. What time is the flight ………………… to arrive? 
A. due  B. plan  C. thought  D. bound