如果我带一个朋友来参加派对,可以吗?
Is it ___OK if I bring a friend to the party?
在这里吃饭可以吗?
Is it ___OK to eat in here?
如果你没问题的话,我就把杂货购物留到明天。
If it's ___OK with you, I'll leave the grocery shopping till tomorrow.