7. Am I supposed to give our German exchange student a hug?<br />8. Why did you take off your gloves before shaking hands?<br />9. Where are you supposed to meet your friends?<br />10. What were you doing when I knocked on the door?<br />11. Don't speak so loudly in the restaurant.<br />12. I prefer to live in the city because it's convenient.
（1）
A . Yes,you are.B . Yes,you doC . Yes,you can.
（2）
A . I don't think so.B . Well done.C . Because it's polite to do so.
（3）
A . At10 a.m..B . In the libraryC . By taxi.
（4）
A . In the bedroom.B . I was reading books.C . I have to do more.
（5）
A . You're welcomeB . It doesn't matterC . Sory,I won't.
