_______ does she chat with friends on the Internet?-Once a week. [ ]

_______ could be judged from her eyes that she was terribly sorry for what he had done.

Would you like _____?—Yes,please. [ ]

Another cup of tea?— No, thanks. I _______ be off. My mom is waiting for me at home .

Is your father in?－ No, he ______ for three hours.