The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.

1. A.
   with, in
2. B.
   in, with
3. C.
   in, in
4. D.
   with, with

The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.         

A. with, in         B. in, with        C. in, in        D. with, with

The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.         

A. with, in         B. in, with        C. in, in        D. with, with

The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.         

A. with, in         B. in, with        C. in, in        D. with, with

The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.         

A. with, in         B. in, with        C. in, in        D. with, with