She has been skating for
A three and a half years B three and half a year
C three and a half yearD three years and half
该怎么填啊 我只会用three years and a half表达
最好能又解释 谢谢
选A我有一道类似的题 老师讲了—How soon will you finish your work？—In about（B）A one and a half monthB one month and a halfC one and half a monthD amonth and half不选A是因为month没加S...
