The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
I spent all the money __________ for rainy days, so I started my part-time job. But it would be some time before I was ___________.
It was __________ computer games that cost the young man a lot of precious time that he ought __________ on his lessons.
Unfortunately, the aboriginal(土著) people tried in vain to win independence __________ the ruling tribe, and prejudice __________ them still continued.
As everyone knows, the South China Sea is __________ part of China, __________ important part of China, any other country outside Asia doesn’t have __________ say in this issue.
He was nominated( 提名……为侯选人)for the best actor____.