What do you think/reckon?

你在想什么？

Do you see what I'm getting at?

你明白我的意思吗？

Do you know/see what I mean?

你知道我的意思吗？

Do you agree with me?

你同意我的意见吗?

Would you go along with that?

你同意吗？

Would you agree with me that … ?

你同意我的意见吗？

What are your thoughts on that?

你对此有何看法？

Don't you think (that) … ?

你不认为…吗？