He dismissed the meeting without a closing speech. 译文：没有闭幕词他就结束了会议。

多项选择题中国拥有大陆海岸线18000多公里。译文：China boasts of a country coastline of more than 18,000km.

问答题Suppose the preparatory work should not be completed.译文：设想准备工作完成不了。

问答题The year 1687 saw the publication of Newton’s great book The Mathematical Principles of Natural Philosophy.译文：一六八七年看到了牛顿的巨著《自然哲学的数学原理》的问世。

问答题An American officer slipped on a banana skin.译文：一个美国军官滑倒在香蕉皮上。

问答题From the evaporation of water people know that liquids can turn into gases under certain condition.译文：人们从水的蒸发了解到，液体在一定条件下能变成气体。