20. Smoking is _________ in all enclosed public spaces, such as shopping malls and museums. Anyone w
21. Learning that her daughter had committed suicide, the mother could not help _________ in despair
27. I have three appointments this week. One is on Monday, _________ is on Tuesday, and _________ is
36. A: Excuse me. Are you the manager? I have some complaints to make about your products.B: _______
37. A: What would you like to drink, coffee or orange juice?B: _______________________A: O.K. Then l
40. A: Excuse me. I need some help here. B: Sure. _______________________ A: I need to go to the air