As a monitor, you should carry out your duty and help teachers to have discipline in the class.

作为班长，你应当履行你的职责，帮老师维持课堂纪律。

youdao

For the past three years, I have served as a monitor to the class that you know well, and which has been praised all over Beijing.

在过去三年，本人一直担任班长。对于我们的班级，您必定知悉，我们的成绩早已为市民所赞赏。

youdao

B. They have a clear purpose in learning a foreign language. C. They can monitor their own learning. D. They can concentrate for a long time in class.

他们在语言学习中没有明确的目的，无法掌控自己的学习，而且注意力也容易不集中。

youdao