starting work, Cao spent his evenings _____ in his books and was eventually admitted to a secondary technical school.

Can you meinformation aboutthe student exchange program

Students sometimes support themselves by _______ of part- time jobs.

More foreign leaders have sent telegrams and letters recently to _____ China on the complete success of the Beijing Olympics between Aug. 8 and 24. [ ]

With the help of doctors and nurses, his_______ health and strength gradually got better. [ ]