关于宾语从句的例句：Isit polite topointwithchopsticks at people in Chi

关于宾语从句的
例句：Isit polite topointwithchopsticks at people in China?
A:A:I want to know whether/if it is point to point with chopsticks at people in China.
B:I don’t think that it is polite to point with chopsticks at people in China.
1 1.Is it impolite to eat soup very noisily in most African countries?
A:
B:
2.Can people eat with their left hands in Muslim countries?
A:
B:
3.Will people leave as soon as they finish eating in western countries?
A:
B:
4.Do Americans eat food like chicken legs with their fingers?
A:
B:
5.Does a formal western dinner always start with a small dish?
A:
B:
分别写A B是什么