Everyone in our class was working hard and doing what we could a good college. A
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Everyone in our class was working hard and doing what we could _______ a good college.
A. enter B. to enter
C. entering D. entered
试题答案
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。