I’ve ____ met her before, so I don’t know her.
— The light is still on in his room. Do you know _________? — In order to practise for the English singing party.
— You seem familiar with Mr. John? —Of course, we _________ together for three years in the 1990s.
—_________ valuable advice you gave me! — I hope it can help.
The song sounds beautiful and it makes me _________ my hometown.
—I can't decide which book to read. —_________ you read the book review?