The 30th London Olympic Games ____________ on July 27th, 2012.
—Here ______ some books ______ you, Jim. —Thanks very much.
—Is this your ______? —Yes, it is. Her name is Ann.
—Is this ______ model plane? —No, it isn’t ______.
—Who’s that at the door? —_____ is John.
如果你向玛丽介绍自己,你应该说:_______