No person __________ carry a mobile phone into the examination room during the national college Entrance Examinations.
At this time of last year, part of Southeast Asia was struck by floods, from _____ effects the people are still suffering.
I regret ______ that I’m too busy ______ in the talk.
It was on the farm _____he spent his childhood _____he learned how to grow vegetables.
Not until ________to do my homework ________ how much time I had wasted playing computer games.
The two presidents agree with each other on the whole, but much remains ______ at the following meeting.