根据首字母及句意补充单词。 1. Mary takes a s_______ every day. 2. My uncle lives in the t_______. 3. It is three k______ from my home to school. 4. He had a q______ breakfast and went to work. 5. It took me twenty m______ to finish the homework. 6. They are waiting for you at the bus s______. 7. Beijing is in the n_______ of China. 8. I often get up at h_______ past six in the morning. 9. There are s______ students in our class. 10. Mary is very thin and she is often i_______.