should/shouldn't建议句型 — 英语句型题

句式运用：Peter 周末玩了一天游戏，晚上觉得又累又头疼（headache）。下面是他好朋友 Mike 给他的三条建议，请根据句意，用 should 或 shouldn't 填空，每空一词。 1. Peter is very tired. He ______ go to bed early tonight. 2. He has a headache, so he ______ play computer games any more. 3. He ______ drink some warm water before he sleeps.