求英语大神来把这五个句子改成特殊疑问句Maria has been studying English since 1999My cousin has been playing football for muchly 4 yearsAlison has been skating for the whole 5 hourswe are been waiting have for the whole 3 hoursBill has been doing homework since he came back 是改成特殊疑问句不是翻译
问题描述：
求英语大神来把这五个句子改成特殊疑问句
Maria has been studying English since 1999
My cousin has been playing football for muchly 4 years
Alison has been skating for the whole 5 hours
we are been waiting have for the whole 3 hours
Bill has been doing homework since he came back 是改成特殊疑问句不是翻译
答