— How long has your brother been working in this factory?
— 　　　 he graduated from college.

Is this factory _____ you visited the other day？

1. A.
   the one
2. B.
   that
3. C.
   where
4. D.
   when

 All the computer in this factory must go through strict ________ before going to the market.

   A. search                 B. check                       C. test                   D. observe

You will see this product made in this factory _____ wherever you go.

A. to be advertised     B. advertised         C. advertise          D. advertising

---It is known to all that this factory pours lots of waste water into the Changjiang River every year.
---- _________ near my hometown.