2 sentences for 活该 (huó​gāi)

1. 他一直这么努力，活该他成功。

   tā yī​zhí zhè​me nǔ​lì, huó​gāi tā chéng​gōng.

   He has always worked so hard; he deserves his success.

   Source: Dong Chinese Dictionary

2. 你不听医生的劝告，现在生病了真是活该。

   nǐ bù tīng yī​shēng de quàn​gào, xiàn​zài shēng​bìng le zhēn shì huó​gāi.

   You didn't listen to the doctor's advice, so it serves you right that you're sick now.

   Source: Dong Chinese Dictionary