我wǒ来lái自zì英yīng国guó。

I come from Britain.

他tā来lái自zì一yí个gè普pǔ通tōng家jiā庭tíng。

He comes from an ordinary family.

这zhè个ge想xiǎng法fǎ来lái自zì我wǒ的de老lǎo师shī。

This idea came from my teacher.

这zhè封fēng信xìn来lái自zì伦lún敦dūn。

This letter comes from London.

这zhè个ge故gù事shì来lái自zì他tā的de童tóng年nián。

This story comes from his childhood.