Ⅰ、1、Russian
2、noisy
3、officer
4、waiter
5、chalk
Ⅱ、1 - 5 C C A B D
Ⅲ、1 - 5 B E D C A
Ⅳ、1、how to
2、a bit of
3、are different from
4、Though he didn't know the poor girl,he bought some food for her./Though he bought some food for her,he didn't know the poor girl.
5、It's not polite to point at others with chopsticks.