你不会碰巧是西班牙人吧，是吗？

You're not Spanish ___by ___any ___chance, are you?

我拿起电话"你好，尼克，你碰巧有或看到我的日记吗？

I pick up the phone "Hello, Nick have you ___by ___any ___chance got, or seen, my diary?

你下周碰巧有空开会吗？

Are you ___by ___any ___chance free for a meeting next week?