摘要： This is interesting book and it is also useful one.
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This is ________ interesting book and it is also ________ useful one．
- A.an; an
- B.an; the
- C.ah; a
- D.a; a
This is ________ interesting book and it is also ________ useful one．
[ ]
A．an; an
B．an; the
C．an; a
D．a; a
This is ________ interesting book and it is also ________ useful one．
[ ]
A．an; an
B．an; the
C．an; a
D．a; a