根据句意及首字母补全单词，使句意完整。 1. Tom's mother was ill, so he had to b_____  his little brother. 2. I often go h_____ to the mountain twice a year. 3. He got a p_____ from the post officer. 4. H_____ and Marco are SARs (特别行政区), they are parts of China. 5. —Hawaii has many places of interest, let's go s_____. —Good idea. 6. It's far from the Summer Palace, why don't you r_____ a bike? 7. It's Monday tomorrow. Don't f_____ to bring you homework. 8. If you don't have your own car, you can r_____ one to drive. 9. Yao Ming is one of the most f_____ basketball player all over the world. 10. My grandfather is a farmer. This summer, I am going to visit him in the c_____.