根据短文内容，从方框中选择恰当的单词填空，有的需要变换形式。
until, catch, glad, when, kind, invite, surprise, guest |
Having a surprise party is very popular. Most people are 1. ________ to have a surprise party for their family and friends. Do you know what a surprise party is like? Let me give you an example.
It was half past six in the evening. Bob 2. ________ his father Mr Green to his bedroom to play chess.3.________ Mr Green opened the door, he found the room was dark. Suddenly (突然地) a lion 4.________ him. He was a little afraid. Then the light was on. He found the lion was Bob! Behind Bob, Mr Green saw his wife and some 5.________. All of them said to Mr Green, “Surprise！” Mr Green was confused (迷惑的). He didn't know what it was 6.________ all of them said “Happy birthday！” to him.There are different 7.________ of surprise parties. But a successful surprise party always makes people feel 8.________ and happy.
1. glad 2. invited 3.When 4.caught
5．guests 6.until 7.kinds 8.surprised