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分层限时跟踪练 Ⅰ.单句语法填空 1．Since the new rules began to work，we students have been permitted to_have (have) one hour for exercise every day. 2．Seeking (seek) to find out the real cause of the accident was what he was eager to do. 3．The traveler who was missing in the mountain was_spotted_(spot) by a plane finally. 4．As far as I know，Tom's careless driving accounted(account) for the accident. 5．Though he is an ordinary man working behind the scenes(scene)，he does extraordinary things. 6．I won't take a/my chance on a July holiday in Britain—it always rains. 7．Children should be taught not to stare at or laugh at the disabled people. 8．We had a happy weekend in the country.As for the traffic，we had no difficulty. 9．The professor thought that the idea the young engineer brought up was worth considering. 10．No one who has not received education and training in safety shall be_permitted (permit) to work in the position. Ⅱ.完成句子 1．你若没有驾驶执照，就不允许开这辆车。 Without the driving permit，you_are_not_permitted_to_drive the car. 2．他注意到在激烈讨论的现场有个人进来了。 He spotted_a_man_entering the spot where a heated discussion was on. | 
