Unit3 Lesson B 1ac 2a

1a:
1-true
2-true
3-true
4-true
5-true
6-true
7-true
8-true
9-true
10-true
11-false
12-false
1c:
1. Cut in line is bad manners.
2. You can offend people by showing affection in public.
3. It's rude not to be wing or shake hands when you meet someone.
2a:
1. bringing
2. arriving
3. inviting
4. to compliment
5. not to say
6. not to ask
7. talking
8. not  to finish
9. taking
10. not to leave