I'm sorry to trouble you again!

welcome to A2k...
how many students are in your class?

You need not say that you are sorry, you have done no one here any harm. If people don't want to deal with your questions, they can simply avoid reading them. Please do not hesitate to ask questions here. At any given time of the day, there are thousands of people here reading and sometimes asking questions or starting discussions. Your question are no inconvenience to us.

There is no such thing as a stupid question from an EFL/ESL as long as it is a genuine question, Hiahezinuo.



"homework" is uncountable [non-count noun]. I can't think of any instance where it is ever a countable noun, though there may be some.

To get the affect you want, we would use 'assignment'.

Our teacher gave us an assignment to do.