We should start to do our homework right now. We must not _______ until tomorrow what we can do today.

b is not very rewarding ________ money, but heis getting valuable experience from it

She is _____a growing number of Chinese people who find it increasingly difficult to find time to readevery day.[ ]

During the meeting a young man cried out suddenly and threw his notebook at the chairman, _____brought the room to disorder.

Though he has lived in America for fiveyears, he doesn’t intend to __________ American citizenship.