He should be having class now.
他现在应该是在上课。
③他们正在哪里上课？
我们都很喜欢上课。
We were having class when the earthquake broke out.
我们正在上课，这时发生了地震。
I suggest you buy some tapes to hear while having class.
我建议你边上课边买些磁带听听。
M: Yes, having class on a weekend is lame because it's a silly idea.
对，我也同意，周末上课太没劲了！谁出的这个主意，是够傻的。
Someday, the professor has a heart attack while he is having class and he dies.
有一天，教授在上课的时候心脏病发作去世。
Having some fun classroom activities can make students more active in class.
进行一些有趣的课堂活动可以使学生在课堂上更加活跃。
I'm having a Chinese class tomorrow.
我明天上华语课。
他们正在上数学课。
They easily solve the problem of not having to store references to every class.
单例模式确实能够轻而易举解决无须对每个类的引用都进行存储的问题。
Over time you'll find yourself having to make changes to your class definitions.
随着时间的推移，您会发现自己必须要更改类的定义。
Pay more attention to your teacher when having a class.
上课的时候你应该注意听老师讲课。
Having coded the RolloverIcon class, we now need to test it.
编写完rollovericon类的代码后，现在我们需要测试它。
Pay more attention to your teacher when having a class。
上课的时候你应该注意听老师讲课。
They want to know if having a smaller class size could improve teaching quality.
他们希望找到几个问题的答案：小班制是否能提高教学质量？
这班的同学在运动。
We're having an oral test in class this week.
这星期我们班有一次口试。
They are having an interesting class.
他们在上一节有趣的课。
When having her class, we don't need to worry about not hearing her voice.
我们不用担心在上她课的时候听不到她的声音。
In the garden, those diligent and smart students of our class are having a party.
在花园里，我们班的那些勤奋聪明的学生正在举行晚会。
I was having trouble in our biology class.
我在生物课遇到了一点困难。
Teacher: Lights please? And that's having a baby. Next week is our final class.
老师：请开灯，生孩子就是这样的。下一周就是我们最后的课程了。
Yesterday was a special day! When we were having an Englisn class, the storm arrived.
昨天是一个特别的日子！当我们上英语课的时候，暴风雨来临了。
We will be having a physics class this time tomorrow.
明天的这个时候，我将在上历史课。
His having been praised at the class meeting made us all encouraged.
他在班会课上受到表扬，鼓舞了我们大家。
他们正在上什么课？
他们正在上什么课?。
They are having an English class.
他们在上英语课。
The whole class are having a party.
全班同学正在举行晚会。
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