Whose room is bigger, Li Pin’s or ______—Li Pin’s. But my room is nicer!

When will the expert come and give the lecture on intellectual property?—Not until our program _______ by the authorities.[ ]

John plays basketball well, ________ his favourite sport is badminton[ ]

I was____ he received an invitation from his friend to visit Chongqing ____ he felton top of the world.[ ]

Have you seen Dr.Adams recently一No. He Hong Kong for an international meeting. He’ll come back tomorrow.