情态动词must/should/can复习 — 英语填空题
题目
Tom 正在医院探望生病的爷爷，请根据语境选择合适的情态动词 must、should 或 can 填空，每个词限用一次。1. Visitors ___ keep quiet in the hospital. It's a rule. 2. Grandpa is tired. He ___ have a good rest. 3. After grandpa feels better, Tom ___ play chess with him in the garden.