Ⅰ. 根据句意及首字母提示完成单词（5分）
1. The headteacher will be a_______ to find students talking again.
2. I really can’t work out the math problem. Can you find out a s_______?
3. Mary works in a restaurant, and she is a w_______.
4. My mother got angry with me when I played a computer game for a long time. P_______ I should turn it off.
5. We should wait in l_______ when we are getting on the bus.
