摘要: Everyone in our class was working hard and doing what we could a good college.A. enterB. to enterC. enteringD. entered[解析]B.此句为省略句.即在 could 后省略了动词 do.若把句子补完整应为Everyone in our class was working hard and doing what we could do to enter a good college.即句中的不定式短语(to enter a good college)是用作目的状语的.而不是与情态动词一起构成谓语.31He ran as fast as he could to catch the early bus.A. to hope B. hope C. hoping D. hoped[解析] C不是A.其中的现在分词短语 hoping to catch the early bus 用作伴随状语.

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