1. The flu virus infected almost the entire class.
    全班几乎人人都染上了流行性感冒病毒。

2. They will come to our class at 2 p.m.
    下午两点钟他们来我们班。

3. They helped each other with homework, worked on research for class assignments and talked about their problems.
    她们总是相互帮助，做课堂作业时也一起动脑筋，她们还一起谈论她们的烦恼。

4. The Education Ministry has tried to combat the juku system by improving public schools, reducing class sizes, improving teacher training, and making the curriculum more flexible.
    教育部已试图向课外学校体制发起挑战，措施包括改善公立学校，缩小班级规模，加强师资培训，灵活设置课程等。

5. To start my career, I took a nine-hour class with a fast-talking woman who made a living reading tarot cards at psychic fairs and for private customers.
    为了开始我的工作，我到一个快嘴妇人那儿上了9小时的课程。她谋生的手段是在通灵大师集市上或私下里为顾客解读塔罗特牌。

6. The lower class yellow and white taxis have no meters, so be sure to negotiate your fare before you depart.
    黄白相间的更低一级，没有计程器，因此一定要在开车前商定好价钱。

7. Keeping up with the face-to-face class and completing all work on time is vital.
    一旦落后就很难追上。

8. He is very attentive in class.
    他上课用心听讲。

9. His teacher castigated him for his inattentiveness in class.
    他的老师因他在课堂上不专心听讲而严厉批评了他。

10. He signed to us with his hand:"The class is over.You are dismissed."
    他向我们做了一个手势, 表示:"放学了, 你们走吧."