Experts ______ the international community to fight cancer aggressively, saying it should be fought in the way HIV/AIDS has been fought in Africa.
The poor man, ______, ran out of the dark cave.
On Christmas Eve, we put up some balloons to _______ the festival atmosphere.
We went to forbidden City last month, ______, not surprisingly, was crowded with visitors.
— Linda, can you give me some tips on doing this project? — Sorry, but I’m not the person to ______ how the job should be done.
Don’t only give me a simple answer. Explain it _______ possible.