2 sentences

1. 你有多少同班同学？

   nǐ yǒu duō​shao tóng​bān​tóng​xué?

   How many classmates do you have?

   Source: AI Challenger 2017

2. 不要跟你的同班同学竞争。

   bù​yào gēn nǐ de tóng​bān​tóng​xué jìng​zhēng.

   Do not compete with your classmates.

   Source: CCMatrix