问题描述：
He___more than 5000 English word when he entered the university at the age of 15.
A.has learned B.would have learned C.learned D.had learned
you had better have the second -hand car ___before you sell it.
A.repaired B.repair C.in repair D.repairing
A.has learned B.would have learned C.learned D.had learned
you had better have the second -hand car ___before you sell it.
A.repaired B.repair C.in repair D.repairing
问题解答：
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