清朝初期一位山西的商人要到当时的丝织业最发达的地方去采购货物，那么他应该去的城市是[ ]

A．苏州

B．北京

C．景德镇

D．南京

.---This _____ John's house .It's number 101.

　 --- I don't think so.He said a large white house but this is a small yellow one.

A．can't be 　　

B．must be 　　

C．may not be 　　

D．should be