He studied hard and pass the examinationA.could able toB.couldC.was able toD.oug
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He studied hard and ____ pass the examination
A.could able to
B.could
C.was able to
D.ought
试题答案
C
be able to 含有“经过努力而完成某一动作”的意思，相当于 manage to do 或 succeed in doing，而 can 只“单纯地表示能力或可能”。