5 sentences

1. 票我已经买好了。

   piào wǒ yǐ​jīng mǎi​hǎo le.

   I have already bought the tickets.

   Source: Dong Chinese Dictionary

2. 他这样做是为了向老板买好。

   tā zhè​yàng zuò shì wèi​le xiàng lǎo​bǎn mǎi​hǎo.

   He did that to curry favor with the boss.

   Source: Dong Chinese Dictionary

3. 营业员正在为顾客包装刚买好的礼品。

   yíng​yè​yuán zhèng​zài wèi gù​kè bāo​zhuāng gāng mǎi​hǎo de lǐ​pǐn.

   The shop assistant is wrapping the gifts the customer just purchased.

   Source: Dong Chinese Dictionary

4. 既然你已经买好了票，就不用我再去买了。

   jì​rán nǐ yǐ​jīng mǎi​hǎo le piào, jiù bù yòng wǒ zài qù mǎi le.

   Since you've already bought the tickets, I don't need to buy them anymore.

   Source: Dong Chinese Dictionary

5. 皮埃尔下周要回法国，他已经买好了回程的机票。

   Pí'āi'ěr xià zhōu yào huí Fǎ​guó, tā yǐ​jīng mǎi​hǎo le huí​chéng de jī​piào.

   Pierre is returning to France next week; he has already bought his return flight ticket.

   Source: Dong Chinese Dictionary