Before leaving the country, you must be in_______of a solid permit.

—Do you know what _____ influenza A (H1N1) has? —A high temperature, throat pain and so on.

He was faced with the    of whether or not to return to his country after he got the doctor's degree in America．

The young man made a _________ to his parents that he would try to earn his own living after graduation. 

一I’we heard that another brand of milk powder has been banned .－It’s a shame that some companies lack the sense of social responsibility and       ．