语法填空

    July is coming. People all around the world are talking about their ____ (vacation). Parents would like ____ (help) their children relax. ____ (luck), they have two months off. Some people enjoy quiet life, so many of ____ (they) stay at home watching TV, using computers and so on. ____ some spend time differently. My pen pal Tony ____ blonde hair is a boy from the US. He says that ____ (America) like going to the countryside. Just like his big family, they often go to a farm. There, some can feed animals, some can play and ____ (other) can watch ____ nice sky and rivers. They can also taste delicious food. They are quite ____  (interest) in the life there.

机器人中吸尘电机的吸入功率是衡量其优劣的重要参数，测得吸尘电机的吸入功率与真空度、风量间的对应关系如表二．真空度指主机内部气压与外界的气压差．风量指单位时间内通过吸尘电机排出的空气体积．吸尘电机吸入功率与输入功率的比值叫做效率．

表二：

在下面一段话的空缺处依次填入词语，最恰当的一组是（）
独自坐在火炉旁边，静静地凝视面前       的火焰，细听炉里呼呼的声音，心中是不专注在任何事物上面的，只是痴痴地望着炉火，说是怀一种惘怅的情绪，    ，可以说是感到了所有的希望全已幻灭，因而反现出            的心境，亦无不可。