-Is this ________ book? -Yes, it's _____
题型:选择题
问题:
-Is this ________ book?
-Yes, it's ________ English book.[ ]
A. a; a
B. an; an
C. an, a
D. a; an
-Is this ________ book?
-Yes, it's ________ English book.[ ]
A. a; a
B. an; an
C. an, a
D. a; an