根据括号内的英语提示翻译下列句子。
我们的计划是在星期五之前学完第三单元。(be to)
                                                                            
我昨天的确抓住了一个小偷。(do)
                                                                     
汤姆喜爱读书胜过与人交谈。(would rather. . . than)
                                                                     
从前这里有一家餐厅。(used to)
                                                                     
你不应该在河里游泳。(be supposed to)