根据短文理解，从A、B、C、D四个选项中选择正确答案填空。

    It's interesting to visit another country, but sometimes there are problems when we don't know the  1 very well. It may be 2 to talk with the people there. We may not know how to use the telephone? In the country we are visiting. We may not know how to buy the 3 we need. In 4 country we might not know where to eat or what to order(点菜)in a 5. It is not easy to decide how 6 to tip(小费) waiters or drivers. When we need help, we might not know how to ask for help. It is 7 to have an experience(经历) like that.  8 a short time, however, we learn what to do and what to 9. We learn to enjoy life in another country, and then we may be 10 to leave there. Do you think so?