Steve goes fishing tomorrow.  - Здесь нет "ошибок". Как варианты: Steve is going fishing tomorrow. Steve will go fishing tomorrow.

Rebecca washes her hair every day.

I visit my grandparents every week.

Tim doesn't want to do his homework.

He is sitting on the floor at the moment.

Do you always watch TV in the evenings?

Sarah drinks coffee every morning.

They don't usually go on holiday in May.

Does she work late? No, she never does.

Peter is looking for a new house at the moment.