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四维热练 (1)用所给词的适当形式填空 ①(2017·全国Ⅱ卷)The government has already permitted the company to use (use) spe- cial materials to make it easier for the vehicle to fly. ②Students living in buildings that have kitchens are only permitted to cook (cook)in the kitchen. ③No reference books are to be taken out of the reading room without permission/being permitted (permit). ④The birthday party will be held in the garden,weather permitting (permit). ⑤The school doesn’t permit staying (stay)up too late at night.