求英语大神帮帮忙（宾语从句）
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: