. It is only in the last sixty years that any evidence that Loch Ness Monster might exist.
Each of the students,working hard at his or her lessons,to go to university.
He has devoted all his life ______ the homeless children.
In the end, Japan and Korea reached the point ___ both sides sat down and had a peaceful talk.
The police are offering a(n) ______ for anyone who can give information about the trafficaccident.
— Have you been here before? —Yes. This is the third time that I ______ to Shanghai.