问题
选择题
Helen was much kinder to her youngest son than to the others, _____, of course, made the others envy him. [ ]
A. who
B. that
C. what
D. which
答案
答案:D
Helen was much kinder to her youngest son than to the others, _____, of course, made the others envy him. [ ]
A. who
B. that
C. what
D. which
答案:D