He ran as fast as he could hoping to catch the early bus为什么hope要用v-ing形式而不用to hope?

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• He ran as fast as he could hoping to catch the early bus为什么hope要用v-ing形式而不用to hope?
• He ran as fast as he could hoping to catch the early bus为什么hope要用v-ing形式而不用to hope?
• 1.He ran as fast as he could _____ to catch the early bus.A.to hope B.hopeC.hoping D.hoped2.Everyone in our class was working hard and doing what we could _______ a good college.A.enter B.to enterC.entering D.entered第一题选C,第二题选B,为什么?请帮忙区分这两个句子,
• 在矩形ABCD中，AB=4，BC=3，E是AB边上一点，EF⊥CE交AD于点F，过点E作∠AEH=∠BEC，交射线FD于点H，交射线CD于点N． （1）如图a，当点H与点F重合时，求BE的长；（2）如图b，当点H在线段FD上时，设B
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