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.