2 I found a key in the lost-and-found office.
3. They have a black-and-white TV.
4. They have a very good collections about sports.
5. DO you play baseball every day?
6. Tom running every morning.
7. My dad is very strict to me.
8. This is your food list.
9. What is the time now?
10. Is tomato a kind of fruit?
像招領處，黑白電視這樣的名詞，橫杠表示兩個獨立單詞組合在壹起，構成新的意思，或者有時候是語法表達的需要，所以不能缺少。