嘿,你听说了吗?
Hēi, nǐ tīngshuō le ma?
Hey, have you heard?
嘿,这是我的朋友。
Hēi, zhè shì wǒ de péngyǒu.
Hey, this is my friend.
嘿,你好吗?
Hēi, nǐ hǎo ma?
Hey, how are you?