It is ________ball -point pen invented by ______ Hungarian refugee named Lazio Biro.
A. a; the         B. the; a          C. a; a　        D. the; the

It is ________ball - point pen invented by ________ Hungarian refugee named Lazio Biro.

1. A.
   a; the
2. B.
   the; a
3. C.
   a; a
4. D.
   the; the

　　A．a; the

　　B．the; a

　　C．a; a

　　D．the; the

It is ________ ball - point pen invented by ________ Hungarian refugee named Lazio Biro.

　　A．a; the

　　B．the; a

　　C．a; a

　　D．the; the