Ⅰ. 根据句意及汉语提示完成单词（5分）
1. Please ______ (叫醒）me up at 6: 00 am. , mum.
2. The boy can tell his mother the ______ (真相)about the whole thing.
3. My grandfather is 90 years old, but he is in good ______ (健康).
4. Tom has a good sleeping ______ (习惯).
5. You must use your ______ (脑筋) to solve the problems.
