Last week I went out to have lunch with my friend George. George is very f______. He likes good food and eats a lot of it. We sat at a big r______ table in the restaurant. After a big meal we had some cakes and drank a few c______ of coffee. " We must go now, George, " I said. " We have been here for m______ than three hours. It's four thirty. "

　　" What do you mean? " asked George in surprise. " We can't l______ now. It's nearly time for dinner.（正餐）"

根据中文或首字母提示，补全句子中所缺单词。

1．It's difficult to get used to another country's _______（风俗）．

2．The scientist is repeating the _______（试验）on rats．

3．It is bad m_______ to make a noise while eating soup．

4．Spending time with family and friends is very i_______ to us．

5．There can be no _______（知识）apart from practice．

6．She _______（掂量）two apples in her hand and gave me the bigger one．

7．Why are you wearing a coat? It's not very _______（适合的）for this hot weather．

8．I always feel n_______ when I speak in public．

9．People in Japan and people in America behave d_______ at the dinner table．

10．when prices are l_______．you can go to the store with the lowest price．