“好啊”造句

要是你早些时候告诉我该多好啊
If only you had told me that some time ago.

“周日晚上在弗兰克家怎么样?”——“好啊,几点?”
"What about Sunday evening at Frank's?" — "Sure. What time?"

“想和我共度这个下午吗?”——“好啊!”
"Want to spend the afternoon with me?" — "Why not?"