两道英语题。求大神给做出来。在线等。急。重赏！可以微信领取赏金！

参考答案如下：
(一)
1. We tend to tip the waiter in restaurants.
2. Weddings tend to be less common these days.
3. Birthdays can be important.
4. Blowing your nose in public can be rude in Japan.
5. Shaking hands tend to be how most people greet you in India.
(二)
1. The bride's family usually pays for the wedding.
2. People often go for picnics in the countryside at weekends.
3. Professionals sometimes can get upset if you don't use their correct title.
4. Cultural knowledge is frequently important in business situations.
5. It is usually best to arrive on time for an appointment.
(三)
1. brief
2. serious
3. separate
4. certain
5. important
6. obvious
7. common
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