– Is this the factory_____you visited last year?
–Yes,it is.

– Is this the factory_____you visited last year?

–Yes,it is.

A．where            B．when             C．which            D．who

 Is this the factory _______ you visited the other day?

A.that                   B. what              C. where            D. in which

– Is this the factory_____you visited last year?
–Yes,it is.

1. A.
   where
2. B.
   when
3. C.
   which
4. D.
   who

-Excuse me? Is this the factory ___ Mr Brown worked ten years ago?

-Yes, you’re right.

A That　　 B where　 C which　 D the one