Careful (准备) for the exam is necessary for us students.
Most drivers in Suqian are (礼貌的) enough to let people walk across the street first.
With the development of science and technology,more and more (机器人)are used in factories.
There are three months in spring,including March,April and (五月).
Everest is a natural (奇迹).Many people expect to explore it.
Sue always has great (勇气)to face difficulties and that's why we all respect her.