. Although ________ after the Civil War, the American blacks still took no important role in the white Americans except as servants and laborers.
The number of people present at the meeting_________about 1000 , a large number of whom _______ experts from abroad.
You can hardly imagine what great difficulty we had _________ the task.
It is in Qingdao ______ you are going to pay a visit to ______ this kind of washing machine isproduced.
From his _______ look, we could see that he hadn’t expected that we could raise such _______ questions to him.
— Can you tell us what is important to a businessman? — ________ information.