83．A：If you don't get up early，you'll be late for class．
        B：Get up _____，_____ you'll be late for class．

84．A：The foreign friends had a good time at the party last night．
        B：The foreign friends ____ ____ at the party last night．

85．A：Tim went to bed after he finished his homework．
        B：Tim ____ go to bed ____ he finished his homework．

十二、完成句子。按照下面各题的汉语意思用英语完成句子，把答案写在横线上，词数不限。（15分）

86．我哥哥经常在星期天买东西。My brother often ____ on Sundays．

87．我希望你能与我们相处融洽。I hope you can ____ us．

88．铃响了，是进行体育活动的时候了。The bell is ringing．It's time ____．

89．有时我们英语老师步行去学校。Sometimes our English teacher ____．

90．前天运动员们同时到达悉尼。
        The players ____ at the same time the day before yesterday．