He had lost track of his daughter for 24 hours——he was very concerned______her safety.

Topic：Differences Between Young Russell and Doris Base your composition on the two texts“Selling the Post ( I )” and“Selling the Post ( II ) ”.

出于对偏远山区孩子教育的关注，退休的徐教授将全部积蓄捐给了“希望工程”。

学生们应该首先根据他们的兴趣来选专业。

如果有效利用的话，因特网对于拓展学生的视野有着令人难以置信的潜力。

即使在平常聊天时很健谈的人，在第一次公开演讲时也会感到害怕。

如果考虑这个事件的历史背景，我们就能理解事件为何发生。

The difference between the possible and the________lies in a person’s determination, (possible)

One____________of a carpenter is to have good tools, which add to his skill, confidence, and pleasure in owning them, (require)

Many college students nowadays stay on campus for the summer and do some______________jobs.(time, part)

A_________novel may do more than mirror history; it may even influence future events, (history)