41. Helen dropped her wallet ____ her briefcase at the front desk.
1. as she was opening
2. although she opened
3. as long as she could open
4. since she wanted to open
42. Many people have stopped smoking because they are afraid that
____.
1. it must do harm to their health
2. they can’t afford to stay healthy
3. it may be harmful to their health
4. they are probably at risk of being healthy
43. The line is busy; ____.
1. there must be a lot of people around
2. passengers have to postpone their trip
3. a lot of cars must be stuck in the traffic
4. someone must be using the telephone now
44. The advisor at the International House recommended that foreign
students ____ before enrolling at the university.
1. take up a new hobby
2. make a lot of new friends
3. take more English lessons
4. spend more time in the cafeteria
45. Before entering the conference room, all participants ____.
1. must present their ID cards
2. had better announce their names
3. should make reservations in advance
4. would rather leave their belongings outside