问题:
---_________ useful dictionary it is!’
--- ‘I think so.’
A.how
B.what
C.what a
D.what an
---_________ useful dictionary it is!’
--- ‘I think so.’
A.how
B.what
C.what a
D.what an
--- ‘I think so.’
A.how
B.what
C.what a
D.what an
参考答案: