— Shirley, I know you ___________ a book about China, Have you finished it?— Not yet. Maybe next year.

–Have you ever _______ to Singapore?–No, never.

Mr Li ____ England.  He ____ London for  two weeks.

 ---Do you know our town at all?    ---No, this is the first time I_______ here.

—Who will go to the airport to meet Mary?—I will. I         her several times. I can find her easily.