短文改错。

　　It is interesting to visit foreign country,but there            1.________

are some problems if we know the language very well.        2.________

It may be difficulty to talk with the people there.                   3.________

We may don't know how to use the telephone there.              4.________

We may not know how to buy things we needs.                     5.________

In a strange country,we may not know where to

be eat or what to order in a restaurant.　　　　　　　　  6.________ 

When we need help,we may not know how to ask help.        7.________

It was not a happy thing to have an experience like that.           8.________