gải thích giúp mk vs 41. They wanted to know if the woman had died of the rare _________. A. illness B. pain C. ache D hurt. 42. “ I wish I _________stay longer,” Maryam said to Lan at the end of the week. A. could B. can C. will D. may 43. Malaysia is divided ________2 regions A. to B. on C. in D. into 44. Maryam was really ________ by the beauty of Ha Noi. A. impressed B. impress C. impression D. impressive 45. The United States has a ________ of around 250 million. A. population B. separation C. addition D. introduction 46. Vietnamese people are very ________ . A. friend B. friendless C. friendly D. friendship 47. We were having dinner ________ the telephone rang. A. when B. while C. until D. since 48. I ________call you as soon as I come back home. A. have B. will C. am D. is going 49. Would you mind ________the door? A. open B. opened C. opening D. to open 50. My family loves this house. It ____ the family home since my grandfather built it 60 years ago. A. was B. is C. has been D. will be