课时作业30（必修5，module 6） ⅰ．完成句子 1．这些座位是留给老人和病人坐的。 these seats ______ ______ ______ old and sick people. 2．字母usa代表美国。 the letters usa ______ ______ the united states of america. 3．她预定周四到达。这期间我们做什么呢？ she's ______ ______ arrive on thursday.______，what should we do? 4．这座桥随时都要倒塌。 the bridge is ______ ______ ______ collapse. 5．他们成立了一个业余学习小组。 they ______ ______ a spare time study group. ⅱ．单项填空 1．the incomes of male professionals went up by almost 80% ______，parttime women workers saw their earnings fall. a．however b．nevertheless c．besides d．meanwhile
