你认为九一八事变纪念馆应该建立在下列哪座城市最合适[ ]

A．北京

B．上海

C．沈阳

D．南京

I wonder what he will think of when he looks over at the splendid house that once________him.[ ]

A. was belonging to  

B. belonged to

C. was being belonged to

D. was belonged to