"Das Kind hat Tiere."

Translation: The child has animals.

[Jinna50]

I translated Tiere as pets and it was marked wrong! I'm confused.

[Weisl]

Pets are "Haustiere" (house animals), "Tiere" means animals.

[AyaSoqar]

Is it wrong to translate "kind" to "boy"

[-.Leni.-]

"Kind" means "child", so it can be a boy or a girl. That's why yes, it is wrong.

[xucheng23]

Why does not Tiere go with "die" here?

[ethan.murdoch]

Because there is no the in the English sentence and therefore no definite group of animals being referred to that would require the definite article to be used.