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.

Вы что ? это же PRESENT SIMPLE !

I have spokenYou 've jokedWe've readI 've sit in front of uShe has told  me a storyTHe child has playedThe door has belledThe dog has run I 've thought ab uYou 've prepared ur h/wWe've travelled all of the world