问题
选择题
Upon arriving home from a business trip, dad asked mum about my academic performance at high school and then _____ of my little sister, who was in junior school.
A．one
B．it
C．that
D．the one
答案
答案：C
题目分析：考查指示代词。句意：出差一回到家，爸爸就问妈妈关于我高中的学习情况，然后，又问了我上初中的妹妹的（学习情况）。one泛指同类中的一个；it表特指；that指代不可数名词和比较对象；the one特指“那一个”。这里指代academic performance，是不可数名词，用that，故选C。