问题
选择题
— Lucy looks blue today.
— Yes, but I don't know what it is________makes herso upset. [ ]
A. as
B. what
C. that
D. which
答案
答案:C
— Lucy looks blue today.
— Yes, but I don't know what it is________makes herso upset. [ ]
A. as
B. what
C. that
D. which
答案:C