by any chance造句

Do you have by any chance a pen with you?
你带笔了吗 ?

Would you by any chance have change for 5 pounds?
你能给我兑换5英镑的零钱吗 ?

I'm sorry to trouble you, but I wondered if by any chance you know where he is.
对不起打扰了，但我想打听一下您是否知道他在哪里。