Question

你知道他明天会来吗？ do you know____ -____ -_____he will come tomorrow

Answer 1

Do you know (whether) (or) (not) he will come tomorrow?
=Do you know whether he will come or not tomorrow? 这种句式更为普遍
= Do you know if he will come tomorrow?

注：楼上有几位朋友回答有误，if 是不可以跟 or not 连用的。

我是江苏初中英语老师，很高兴为你答题，祝你进步! 有问题可以继续追问！

Answer 2

do you know whether or not he will come tomorrow
希望可以帮到你 呵呵

Answer 3

do you know if he will come tomorrow or not

Answer 4

whether 或if

Answer 5

你知道他明天会来吗？ Do you know whether or not he will come tomorrow？

望采纳，合作愉快！