Had she __________her promise, she wou

问题：

[单选] Had she __________her promise, she would have made it to Yale University.

A . looked up to
B . lived up to
C . kept up with
D . come up with

参考答案：B

参考解析：

A项表示“抬头看，尊敬”；B项表示“履行”；C项表示“跟上”；D项表示“想出，追赶上”。由promise可知，B是正确选项。句子意思为：如果她当初履行自己的诺言．她就被耶鲁大学录取了。