根據(jù)句意完成已給出首字母或漢語提示的單詞，使補全的句子意義通順，語法正確。

1．Which festival is the most important in w                countries?

2．Foreigners are warned not to go to Iraq now, for it is full of d            ．

3．After the show ended, the theater became e            quickly．

4．There were many great inventions in the twentieth c                 ．

5．Before you have the medicine, you should read the i             carefully first．

6．The trip to Hainan is very                   (令人愉快的)．

7．I               (想知道) if you can help me with my English．

8．It is                (必需的) for everyone to get up early every day．

9．I won't                 (相信)you until I see it with my own eyes．

10．The people                (提供) us with many food and things when we were in trouble．