1．After a year in France she was f________ in French.
2．Mr. White comes from the US, and English is his n________ language.
3．He has changed a lot. I could hardly r________ him.
4．He was a young sailor on his first sea v________.
5．There are plastic and wooden chairs but the ________(后者) are more expensive.
6．He speaks English with a strong German ________(口音).
7．Yesterday I went, at his ________(请求), to the English evening party.
8．You have to get the ________(官方) permission to build a new house.
9．The open-air celebration has been put off ______ the bad weather.(由于)
10. I’m quite free ______ if you want me to help you.(现在)
