If he _______ (practice) every day, he _______ (become) a champion.

This is a conditional sentence. Let's determine which type of conditional it is.

Since the sentence describes a general truth or a likely outcome, it's most likely a Type 1 conditional (also known as the first conditional). The structure for Type 1 conditional is: If + Present Simple, will + infinitive.

Therefore, the correct forms of the verbs are:

If he practices every day, he will become a champion.

Translation: Если он будет тренироваться каждый день, он станет чемпионом.