根据首字母及句意完成句子。
1. The teacher came in with a big s_____. She was so happy.
2. Stupid is another way of saying s_____.
3. The medicine tasted b_____ and the boy spat it out (吐出).
4. Follow the doctor's a_____ and you will get well soon.
5. Think it over before making important d_____, especially when you are in a bad mood.