完形填空。（每小题2分，共20分）
根据短文内容，从A、B、C、 D四个选项中选出一个能填入相应空格内的最佳答案。
Everyone should do something to protect the environment. How did we help to save our earth this week? Let me tell you.
First, my family try to save     . We never left the lights on when leaving the rooms. We turn off the TV when     is watching it. Mom only uses cold water in the washing machine.
Second, we also start recycling this week. We      to write on both sides of the paper, not just on one side. We also      our rubbish into different bags for bottles, cans, paper and food. Mom keeps the plastic shopping bags from the supermarket to use them again as rubbish bags. These are great       to help our environment.
Third, my family also save water. We never take long baths and have short showers       . We wash the toilet with used water. My sister and I don’t      the tap running when we brushed our teeth.
At last, mom and dad begin to save gas. Mom       to drive us to school, but now my sister and I start riding our bikes to school. It’s hard work     good exercise! This week dad and his workmates also start to go to work together in one       and share the cost. This also help reduce greenhouse gases.
These are great ways to help protect our environment.

A．oil B．food C．water D．electricity

A．everybody B．somebody C． anybody D．nobody

A．try B．keep C．refuse D．want

A．buy B．check C．divide D．change

A．ways B．news C．information D．advice

A．already B．instead C． again D．too

A．leave B．leaves C．leaving D．left

A．began B．hoped C．needed D．used

A．or B．for C．but D．and

A．bus B．car C．subway D．train