— We haven't been to the Great Wall for ages. — No, I don't remember how many years ago _______ I last visited it.
---Can you tell me what role a mobile phone______ in our daily life?--Of course.
It is said that the number of doctors invited to the meeting _____100, but a number of them _____ absent for different reasons.
--Can you come here on time for the party? ---__________. I’m free this afternoon.
Mr. White ______ from heart trouble, and he takes some medicine with him.
My mother asked me ______.