This is ______ English book.______book i
问题:
This is ______ English book.______book is very useful (有用的) for your study.[ ]
A. an; A
B. an; The
C. a; A
This is ______ English book.______book is very useful (有用的) for your study.[ ]
A. an; A
B. an; The
C. a; A