單字：

watermelon (西瓜), airplane (飛機), flashlight (手電筒), lighthouse (燈塔), lifejacket (救生衣),

flagpole (旗桿), newspaper (報紙), playroom (遊戲室), bedtime (就寢時間), rattlesnake (響尾蛇)。

句子：

1. What is the compound word from paint + brush ?（paintbrush.）
2. What is the compound word from bed + time ?（bedtime. ）
3. What is the compound word from ear + ring ?（earring.）