Had he______her promise, she would have made it to Yale University.
A.looked up to
B.lived up to
C.kept up with
D.e up with
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B解析试题分析：考查词组辨析：
A. looked up to尊敬，敬重，
B. lived up to达到…的期望，不辜负，
C. kept up with跟上，
D. e up with 提出，句意：要是她履行诺言，现在就会进入耶鲁大学了。选B。
考点：考查词组辨析