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1. Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words.

  A. just left                     B. has just left     

C. is just leaving               D. was just leaving

2£®He hasn't come yet£®What do you consider _______ to him£¿

A£®happens                       B£®has happened      

C£®happening                     D£®to happen

3. ______ is known to us all is that China has launched Shenzhou V spaceship successfully.

A. That        B. What           C. It           D. As