问题描述：
Had he worked harder,he（ ）the exams.A.must have got through B..would have got through C..wo
Had he worked harder,he（ ）the exams.
A.must have got through
B..would have got through
C..would get through
D..could get through
Had he worked harder,he（ ）the exams.
A.must have got through
B..would have got through
C..would get through
D..could get through
问题解答：
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