It is in Qingdao_____ you’re going to pay a visit to _____ this kind of washing machine is produced.

A．/; that

B．where; which

C．/; where

D．that; which

To travel to the United States，you must first apply _______ the American Embassy _______ your visa.[ ]

A．for; to  

B．to; for  

C．for; for  

D．to; to