题目内容：

阅读下面材料, 在空白处填入适当的内容(1个单词) 或括号内单词的正确形式。

The surprise party is very popular in America. Most people in America think    1.   is very exciting to have surprise parties for their good friends or family members. It is quite easy to plan a surprise party when one’s birthday   2.    (come). Do you want to know3.  a surprise party is like? Look at the following example. It’s night. Bob’s wife asks him   4.    (go) downstairs to the kitchen and bring her a glass of milk. Bob walks to the kitchen and pushes the door open. There’s no sound   5.  light there.   6.   (sudden) he hears a strange sound and then sees a bear    7.   (stand) in front of him! Bob is very scared and falls backwards. The bear takes off his costume. It’s Bob’s friend Charles! There    8.   (be) also several people behind Charles,    9.  (include) his wife. All of them say to Bob, “Surprise!! Who!!” Bob is    10.   (puzzle), and he does not know what it is until his friends say “Happy birthday” to him.

In fact, the surprise party has many kinds of forms. A successful surprise party always makes people feel surprised and excited. Everyone enjoys themselves at the party.