1．This is a committed(坚定的) group of environmentalists.They devote most of their time and energy to protecting the environment.
2．You should focus(集中) your attention on your study; otherwise, you may fail in the exam.
3．Finally he had no choice but to admit(承认) stealing the watch.
4．I think you should forgive him for his rudeness and apologize(道歉) to him first.After all, he is your brother.
5．When asked about his attitude(态度) towards such a matter, he remained silent.
6．If you betray (背叛) your family, you will lose them.
7．I knocked on the door and tried to wake up the children, but there was no response(回应) at all.
8．It is Helen, rather than Tom, who is to blame(谴责) for the broken glass.
9．Don’t lose heart.There is no difficulty in the world that cannot be overcome(克服)．
10．The death of Steve Jobs has attracted worldwide(全世界的) attention.
