问题补充:
excited his parents most is that he had passed the entrance exam and was admitted into his dream college.
A. That
B. What
C. Which
D. It
答案:
A. That
(答案→)B. What
C. Which
D. It
解析:考查主语从句的引导词。本题的what引导起主语从句what excited his parents most.并在句中做主语。句意:让他的父母亲最高兴的是他通过了高考被心中的大学所录取。故B正确。