At the meeting an important problem _______ and it attracted everyone’s attention.
Tom was so wild about computer games that he would stay online for ten hours ______every day.
This is a difficult and stressful job, but one ______ you can really help people.
After the earthquake, the Haitian(海地的) people needed to be helped ______.
______, a small advertisement held my attention, which read “Easy job.Good wages.No experience necessary.”
Obama says he is angry about policies that always favor the wealthy and powerful over ______ Americans and insists that opportunities be opened up to all.