She showed the visitors around the museum, the construction ________  had taken more than three years.

A．for which 

B．with which

C．of which 

D．to which

She showed the visitors around the museum, the construction          had taken more than three years.

She showed the visitors around the museum, the construction _____ had taken more than three years.

She showed the visitors around the museum, the construction _____had taken more than three years.

A. for which????????????? ????????????? ????????????? B. with which????????????? ????????????? ????????????? C. of which????????????? ????????????? ????????????? D. to which

She showed the visitors around the museum, the construction          had taken more than three years.

A．for which         B．with which         C．of which          D．to which

She showed the visitors around the museum, the construction _____ had taken more than three years.

She showed the visitors around the museum, the construction _____ had taken more than three years.

1. A.
   for which
2. B.
   with which
3. C.
   of which
4. D.
   to which