根据所给中文意思完成句子，每空只填一个词。 小题1:骑车上学不仅有趣而且环保。 Cycling to school is both enjoyable and _____________________ _________________. 小题2:难怪它看起来那么真实。 _______________ __________________ it looks real. 小题3:即使是最简单的日常活动也会对环境有重大的影响。 Even the simplest everyday activities can ______________ a _________________ to the environment. 小题4:在把垃圾扔掉之前应该先将它们分类。 The waste should be sorted before it is ________________ __________________. 小题5:他已经浏览了图书馆里所有的书。 He has ______________ ______________ all the books in the library. 小题6:Mary 上个月顺便来看了我。 Mary _______________ _______________ on me last month. 小题7:和其他地方比，那通常非常热、充满阳光。 It’s usually very hot and sunny __________________ ________________ many other places. 小题8:他们的家庭和我们的相似。 Their family is_________________ _______________ ours. 小题9:我们也挂起海报来告诉学生们怎样做是环保和节能。 We have also ________ _________ posters to tell the other students how to be green and save energy. 小题10:网络的发明帮助人们彼此交流。 The invention of the Internet helps people_____________ _____________ each other.