老板，这里有卖打火机吗？

Lǎobǎn, zhèlǐ yǒu mài dǎhuǒjī ma?

Boss, do you sell lighters here?

他把房子卖了。

Tā bǎ fángzi mài le.

He sold his house.

这家商店是卖什么的？

Zhè jiā shāngdiàn shì mài shénme de?

What does this store sell?