问题补充:
— will she stay here?
— For .
A. How soon, one hour and a half
B. How long, one and a half hours
C. How soon, one and half hours
D. How long, one hour and half
答案:
A. How soon, one hour and a half
(答案→)B. How long, one and a half hours
C. How soon, one and half hours
D. How long, one hour and half
解析:how短语用法。how long多长(时间),对一段时间提问,how soon多久,对将来的时间提问。由答语for…判断指一段时间,故A、C错。一个半小时用one and a half hours
或one hour and a half,故选择B。