--________! Or we won't catch the last bus.--I'm too tired to go any further.A.Don't worryB.Hurry upC.SorryD.Quickly
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B解析此题题眼为or we won't catch the last bus,故前面应该填“快点”。那为什么不选D呢?因为上句为一重要句型,即“祈使句,and / or+简单句”,这个句子也改为If you don't hurry up, we won't catch the last bus。祈使句中应有动词做谓语,而quickly是副词,不可单独构成祈使句。