The study was carried out in one small town so we can’t be sure that the results are truly ________.

   A. exact         B. proper              C. representative           D. natural

The study was carried out in one small town so we can’t be sure that the results are truly ________.

1. A.
   exact
2. B.
   proper
3. C.
   representative
4. D.
   natural

The study was carried out in one small town so we can’t be sure that the results are truly ________.

   A. exact         B. proper              C. representative           D. natural

The study was carried out in one small town so we can’t be sure that the results are truly ______．

A．proper             B．impressive             C．representative              D．natural

The study was carried out in one small town so we can’t be sure that the results are truly ________.