一般将来时 Bill does his homework at home。（用tomorrow改写）

Bill is doing his homework at home,tomorrow.

一般将来是就一定会用ing形式的、

而ing形式的就必须要有be动词、

因为bill是第三人称单数所以be动词也要用单数形式的、

时间放在后面就可以了、

希望对你有帮助、

Bill will do his homework at home tomorrow.