Grammer

Hey,
I'm not sure wether I do my homework right.. May someone of you can look and correkt

Somebody I knocking at the door. Can you see who it is?
First you cook the onions in a little oil until they are golden brown.
Carlos forever loses his temper with people!He must learn to calm down.
Here cames the bus! You'd better hurry.
'Where's Jack?' 'He is reading the paper in the kitchen.'
Whenever I put up my hand, Harry kicks me under the desk.
I'm sorry, but I don't understand you.
Maria is leaving now,so could you get her coat?
Come and eat your dinner. It's getting cold.
I hear you did really well in your exams. Well done!

In this exercise we have to decide wether we use present simple or present continuous. Did I do it right?

Greets
Cinderella