They find that while they're answering questions about toilets, their classmates are busy attending classes and writing papers.

他们发现自己在为游客指路的时候，同学则正忙着听课写论文。

youdao

For example, if you want to go back to school, then you must commit to completing the coursework, attending classes and paying tuition and book fees.

比方说，如果你选择回到学校，那么你就应该选择将自己托付于硕士课程之中，你必须上课并且支付学杂及书本费用。

youdao

In order to earn his living in a strange city, Zhao first worked in a supermarket at PKU selling fruits and spent his spare time attending classes.

为了在这个陌生的城市赚足生活费，赵铭起初在北大校内的一家超市打工卖水果，空闲时间就去旁听。

youdao

At the same time, the economy itself in Mexico is going to be affected because nobody is attending classes.

VOA: standard.2009.04.30

As long as I paid my medical school fees every year, my family would never know I wasn't attending any classes.

VOA: special.2009.07.18

The surviving students have been attending classes in a middle school in nearby Monroe, Conn.

WSJ: Sandy Hook's School Planning Divides Newtown, Conn.

The few students still attending classes are generally doing so in the hopes of being fed, he said.

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Students from eight schools nearest the World Trade Center site were attending classes at other schools around the city Monday.

CNN: Somber Manhattan back at work