1．It’s never foolish to acknowledge (承认) you are in the wrong. Being human，we all need the art of apology.
2．He foresaw (预言) that his journey would be delayed by bad weather.
3．His teachings were so abstract (抽象的) that many of us couldn’t understand them.
4．There are many good deeds (行为) in our class, indeed in the whole school.
5．When the news came that Nelson Mandel died all the people fell into deep sorrow (悲伤) among them.
