根据句意和首字母提示补全单词。 1. Turn on the l , please. It's too dark here. 2. The young girl sent an email to the company, but they didn't r to it. 3. The boss asked Peter to c all the rubbish (垃圾) from the office. 4. The population of the city has r up to five million. 5. 'Don't lie on the wet g . It's bad for your health,' the mother said to her son. 6. 'Can you answer the questions b ?' the teacher asked. 7. Tom wants to know when dinosaurs d from the earth. 8. The d between Beijing and Shanghai is about 1,000 kilometres. 9. Have you ever seen a h whale in the sea? 10. All the windows of my house f the south.