Fill in the missing words according to the sentences. 用第三单元中的词汇填写下列空缺的单词 1. What is Sam doing at 8 in the morning? He is h________ breakfast. 2. What do you u________ do on Sunday? 3. Sleeping is g_____ for our health. 4. He never plays s______ and does any outdoor activities. 5. S_______ helps us reduce stress and lost weight.