I don’t think________possible to finish so much work within so short a time.

I don’t think________possible to finish so much work within so short a time.

1. A.
   this
2. B.
   that
3. C.
   its
4. D.
   it

I don’t think________possible to finish so much work within so short a time.

      A.this                B.that                           C.its               D.it

I don’t think________possible to finish so much work within so short a time.