The woman _______ is singing in the hall is our teacher.
I won’t go to the concert because I _______ my ticket.
--Don’t forget to give my best wishes to your parents. --___________ .
The meeting ______ for a week .
—How long ________they_________? —Sorry, I don’t know. But I know that Mr. Chen is going to _______a nurse next month.
I find it impossible for me _______ my old friends. This often makes me _____ sad.