【填空题】

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为16~25的相应位置上。
    The office has always been a place to get ahead. It is the place where many people make______career a success. Unfortunately, it is also ______ a lot of natural resources start to fall behind. Pay attention, ______you will find the following things: when people leave, they leave their lights on and their computers ______ (work); they tend to throw cans and bottles away instead of considering recycling them; they are also not in the habit of saving paper or water.
    Wasting natural resources is of no benefit but harm to the environment. Now, ______ (produce）less waste at work, we should at least do the following things. ______ we are at the copier, only make the copies we need. Use ______ sides of the paper when writing something less important. Turn ______ our lights when we leave. Start to set up a recycling box ______ cans and bottles. Remember, if we use ______ (little) today, we’ll save more for tomorrow.