Giai thich vi sao lai chon cau do 5. A date that is an exact number of years after the date of an important event is a(n) _____. A. birthday B. celebration C. wedding D. anniversary 6. Parties provide a number of opportunities for social ___________ of various kinds. A. interaction B. connection C. involvement D. activity 7. A lot of foods and drinks will be served________ the party. A. in B. at C. for D. with 8. She works late ______ Mondays and gets home ______ seven ______ the evening. A. in/at/on B. on/at/in C. in/on/at D. on/at/on 9. Be sure ________ your doctor for advice before ________ jogging. A. to ask/ to take B. asking/ taking C. to ask/ taking D. asking/ to take 10. We would like ________ to the President’s reception, but we weren’t. A. having invited B. having been invited C. to have invited D. to have been invited 11. “You look so sad. ____” – “I couldn't have my parent's permission.” A. Can you help me? B. How do you deal with it? C. What's the problem? D. What should I do? 12. “Why don't we talk to Mr Green first? I think he can help.” – “____” A. Good idea. B. I understand. C. Yes, thanks. D. You are wrong.