练习中心
顺序练习
按照章节顺序依次练习所有题目,适合系统学习
组卷考试
随机抽取题目进行练习,适合巩固知识和检验学习效果
错题重做
针对做错的题目进行重点练习,强化薄弱环节
章节练习
选择特定章节进行练习,针对性提升某一知识点
收藏题目
集中练习收藏的重点题目,加深理解和记忆
考试记录
按题型或难度进行专项练习,突破学习瓶颈
题型练习
按照章节题型获取题目练习,适合系统学习
小练习
随机抽取题目练习
高频错题
按题目做错次数,加深记忆
题目预览
George is one of the brightest students who_________ from New York University.
George is one of the brightest who_________ from New York University.
People ________ a new festival so that African Americans would be able to celebrate their history and culture.
The key to ________laws lies in devotion and responsibility of the staff concerned.
Sometimes she feels very depressed , as if tomorrow _______ come.
Man has never ceased to search for cures for such ________ diseases as cancer and AIDS.
I’d like to _______ this old car for a new model , but I can’t afford it.
Our high school has an assembly_______ 2 weeks.
The child was _________ by his bad grades and did not want to go to school.
The sales _________ had started and the hunters were out in great numbers.