We don’t have to ________ every word that we don’t know when reading.

We don’t have to ________ every word that we don’t know when reading.

1. A.
   look up
2. B.
   refer to
3. C.
   look for
4. D.
   look into

We don’t have to ________ every word that we don’t know when reading.

A. look up                            B. refer to                           C. look for                            D. look into

We don’t have to ________ every word that we don’t know when reading.