He is going to buy _______ useful book.And _______ book is on science.( )
A. |
a;an |
B. |
a;the |
C. |
an;an |
D. |
an;the |
He is going to buy _______ useful book.And _______ book is on science.( )
A. |
a;an |
B. |
a;the |
C. |
an;an |
D. |
an;the |
试题篮
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