3 sentences

1. 我们学校是不是你的首选？

   wǒ​men xué​xiào shì​bu​shì nǐ de shǒu​xuǎn?

   Is our school your first choice?

   Source: CCMatrix

2. 我想当他的首选。

   wǒ xiǎng dāng tā de shǒu​xuǎn.

   I want to be his first choice.

   Source: OpenSubtitles

3. 许多航空公司让乘客有机会在预订航班时选择首选座位。

   xǔ​duō háng​kōng​gōng​sī ràng chéng​kè yǒu jī​huì zài yù​dìng háng​bān shí xuǎn​zé shǒu​xuǎn zuò​wèi.

   Many airlines give passengers the opportunity to select a preferred seat when booking a flight.

   Source: CCMatrix