He has to finish the experiment today. He must be in the lab,____?—That s quite possible.

Hello, I ____ you ____ in London, how long have you been here?— I came here last week[ ]

Tina，what do you think of the________—Oh，it’s not difficult.I think I can get good marks.

He was chosen to be a volunteer for the Yangzhou Expo.—Great! No one speaks English _______ him.

William_____ some gifts from his friends， but he didn’t_____ them.