Before I had time to check what I had written in the exam, the bell rang.
Judging from his performance in the job interview, he is qualified for this post.
Have you regretted wasting/ having wasted so much time playing video-games in the past few years?
Turning off the lights before leaving proves to be an effective measure of saving electricity.
(show) If everybody shows a bit love to the others, our society will become better.
He decided to improve his reading comprehension in English by reading China Daily every day.
You will live longer if you take a walk after a meal, which is reasonable in science.
Life is priceless, so we should save not properties but people when disasters occur.
The spirit and courage which the Chinese athletes showed in the Olympic Games have greatly inspired the people of the whole country.
I think the reason why he failed to learn English well is that he lacked perseverance.