4 полодительных и 4 отрицательныз предложений present perfect countinues tence) !

I have been waiting here for 2 hours!
He has been playing football for 2 hours.
They have been talking for the last hour.
She has been watching too much television lately.
It has not been snowing here since 2005.
They haven’t been waiting for him for so long since last summer.
James hasn’t been teaching at the university since June.
Mary hasn’t been feeling a little depressed.