— Everybody knows smoking is harmful to health, but still so many people smoke.

   —Exactly! So our country is planning to start a ____ against smoking.

  A. war             B. campaign          C. motion           D. struggle

The fact that smoking is harmful to health is 　　　　most smokers are quite aware of．

A．what　 B．which　 　 C．where 　　 D．that

The fact that smoking is harmful to health is__________ most smokers admit．

1. A.
   what
2. B.
   whether
3. C.
   where
4. D.
   that