问题补充：
He said his sister had passed the entrance examination of college, andshe would go to college in about 20 days.
A. that; /
B. that; that
C. /; /
D. that; which
答案：
A. that; /
(答案→)B. that; that
C. /; /
D. that; which
解析：主要测试宾语从句。由具体的语境可知语境中动词say的宾语既是后面的两个句子，另外结合具体语境可知句子 his sister had passed the entrance examination of college, andshe would go to college in about 20 days中只是需要引导宾语从句的引导词，故此答案只能选择两个that。译文：他说他妹妹已经北大学录取了，并且二十天后就去上大学了。
