问题
选择题
___we can’t understand is ____he didn’t join us in our discussion.
A.That; why
B.Which; how
C.What; what
D.What; why
答案
答案:D
___we can’t understand is ____he didn’t join us in our discussion.
A.That; why
B.Which; how
C.What; what
D.What; why
答案:D