问题
单项选择题
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
答案
参考答案：B
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。