What's wrong with the sentence?
He runs fastly.
He runs fast.
There is a park near my home.
There was a park near my home.
I turned off the light before I went out.
I turned it off before I went out.
She didn't go for a bike ride with us.
She went for a bike ride with us.
There was a lot of salt in the soup.
There wasn't much/enough salt in the soup.
She sings good.
She sings well.
I do homework every afternoon.
I did homework this afternoon.
She put on her sneakers and went out for a run.
She put them on and went out for a run.
They didn't go camping or hiking last weekend.
They went camping and hiking last weekend.
There were many students in the classroom.
There weren't many/any students in the classroom.
He eats quick and loud.
He eats quickly and loudly.
It is sunny and hot today.
It was sunny and hot yesterday.
Can you turn up the heat? I feel cold.
Can you turn it up? I feel cold.
He didn't read a book before going to bed.
He read a book before going to bed.
He knows who I am.
He doesn't know who I am.
She talks so loudly that I cannot hear her.
She talks so quietly that I cannot hear her.
They are classmates now.
They were classmates before.
Did you hand in your homework to the teacher?
Did you hand it in to the teacher?
He didn't eat much for breakfast this morning.
He ate a lot for breakfast this morning.
They sang and danced at the party.
They didn't sing or dance at the party.
He dances graceful but he isn't a well singer.
He dances gracefully but he isn't a good singer.
The ice cream melts when it is too hot.
The ice cream melted when it was too hot.
I'm going to pick up my dad at the airport.
I'm going to pick him up at the airport.
She wasn’t listening to me, so she didn't know what I was talking about.
She was listening to me, so she knew what I was talking about.
We had a lot of fun at the zoo.
We didn't have much fun at the zoo.