给出健康建议的句型 — 英语填空题
题目
根据句意，用 should 或 shouldn't 及括号内提示完成句子（每空一词，首字母已给出）。
1. You look very tired. You s______ go to bed early tonight.
2. Eating too much candy is bad for your teeth. You s______n't eat so much candy.
3. To keep healthy, you should e______ for half an hour every day.