Do the boys and girls have the same favorite ______(subject)?到底是填单数还是复数啊~Mike is ill.He ____(must/has to)go to the hospital.是填must还是has to，为什么
问题描述：
Do the boys and girls have the same favorite ______(subject)?
到底是填单数还是复数啊~
Mike is ill.He ____(must/has to)go to the hospital.
是填must还是has to，为什么
答
我认为应该是单数，因为 have the same favorite 指他们有相同喜欢的科目，是一个，所以是单数、、
答
复数
答
单复都可以. has to更好.has to 表示*,不得不. must表示主观认为的必须