Поменяйте предложения present continuous на present perfect. Предложения внизу
I am speaking.
You are joking.
We are reading.
I am sitting in front of you/
She is telling me a story.
The child is playing.
The door is belling.
The dog is running.
I am thinking about you.
You are preparing your homework.
We are travelling all of the world.

I speak. You joke. We read. I sit in front of you. She tells me a story. The child plays. The door bells. The dog runs. I think about you. You prepare your homework. We travel all over the world.