3、说, 得出这种结论是有一定把握的, 然而，必须具备两个条件：能够假定这个孩子与他的竞争能力对手对考试已经有着相同的态度；他也不会因为缺乏对手们已掌握的有关知识而被处罚。28.那个男学生在过马路的时候，被一辆小型巴士撞倒。29.在任何时候，任何情况下，是有的供应都有可能毫无预兆地中断，就当前的石油使用速度来说，油井将会在未来三十年左右枯竭。30.在一些欧洲国家里，人们能够得到最好的社会福利，如医疗保险。参考答案1.You are expected to finish the work soon by us. 2.The important problem has been discu
4、ssed by us at the meeting. 3.The exercises like that are often doneby the students in class. 4.A new bridge will be built over the river by them. 5.Has your homework been done yet? 6.This kind of bikes is made by the factory.7.The maths exercise books must be handein before class. 8.The room i
5、s used as a meeting-room by used.9.Can the trees be finished planting by them tomorrow? 10.It may be done a little earlier by you11.She was seen to go out from the school by me. 12.A birthday present was given to me by her. 13.Water hasn’t been finished carrying byus.14.Can the work be finishe
6、d in two hours15.The matter has never been said to me by him.16.Even if problems do emerge, they can be easily corrected or solved.17.The production plan was carried through due to the common effort of the workers and staff.18.The culture of antiquity was rediscovered.19.The professors are pai
7、d for this. 20.The unemployment rate in that country is expected to remain stable for 2000. 21.His frequent absence from class must be dealt with immediately. 22.The difference between a brain and a computer can be expressed in a single
