---Mr. Jones isn’t at his desk. Where is he?---_______. I have no idea.
We want to rent a bus which can________40 people for our trip to Beijing.
________is no doubt that today greenhouse gases are the largest human influence on global climate.
He had the right to take ________ of the house and farm after his father died.
When I went into her room, she was ________ in her work.
I travel to the Binhai New Area by light railway every day,________ do many businessmen who live in downtown Tianjin.