完形填空。 We're lucky to live in a rich country where we have many things. However, most of us usually 1 some things. Electricity is one thing that we waste most. Lights, TVs, 2 and other things are often kept on even when no one is using them. We should turn them off when we don't need them. It 3 less a second to do it. Anyhow, not wasting electricity saves money, because we don't have to 4 the electricity we do not use. The second thing that we often waste is water. Fresh water is precious (珍贵的), 5 it shouldn't be wasted. It is only a simple matter of turning off a tap. I am sure 6 can do this easily if he wants to. 7 big waste is food. My mother 8 cook so much food that much of it was thrown away. I told her we had wasted so much food. She thought I was right and now cooks 9 what we can eat. It is 10 to be wasteful. I find there is a simple way of not wasting things. That is to use only what we need. Do not touch what we do not need. In this way we can stop being wasteful. (     )1. A. use (     )2. A. radios (     )3. A. brings (     )4. A. afford (     )5. A. because (     )6. A. everyone (     )7. A. Other (     )8. A. planned to (     )9. A. mainly (     )10. A. right B. wash B. bikes B. takes B. save B. so B. someone B. The other B. used to B. mostly B. fine C. waste C. pens C. gets C. pay for C. though C. no one C. Others C. was able to C. specially C. bad D. forget D. books D. has D. care for D. but D. none D. Another D. was afraid to D. only D. necessary