I often help with housework.

我经常帮忙做家务。

They often help with housework.

他们经常帮忙做家务。

I do not understand why some parents make their kids help with housework and chores at home.

我不明白为什么有些父母让他们的孩子在家里帮忙做家务。

Teenagers are supposed to help with housework to develop their independence.

青少年应该帮助做家务，以培养他们的独立性。

He often sees the girl help with housework.

他经常看到这个女孩帮助做家务。