－I want a room for 20 people to have a birthday party一Unlucklly there is no oneA. qualifi

问题补充：

－I want a room for 20 people to have a birthday party．

一Unlucklly there is no one

A. qualified

B. available

C. standard

D. permanent

答案：

A. qualified

(答案→)B. available

C. standard

D. permanent

解析：Available 可利用的，可提供的，常跟在被修饰词的后面；其它三项standard标准的，permanent永久的，qualified 合格的，他们作定语常放在被修饰词之前，且这里意思与题意不符。