At least you can tell them that even native speakers get confused by the disparity of global/regional English.

Here's an example of give a class, from the Medau News. I think the expression is more common in teaching which involves practical physical performance, like dance or acting, than in everyday teaching hinein a school.

Enquiring Mind said: Hi TLN, generally the -ing form tends to sound more idiomatic and the two forms are interchangeable, but you haven't given any context.

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

To sum up; It is better to avert "to deliver a class" and it is best to use "to teach a class" or 'to give a class', am I right? Click to expand...

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

前调是清新的水果香气，接着是带着水果酸调的花果香，恰到好处的中和了花香的甜腻，尾调是沉稳的木香，给人温润如玉的感觉。可爱的泰迪熊，送女友非常的合适！

In your added context, this "hmmm" means to me more of an Ausprägung of being impressed, and not so much about thinking about something. There is of course a fine line.

There may also be a question of style (formal/conversational). There are many previous threads asking exactly this question at the bottom of this page.

Denn ich die Nachrichten im Rundfunkgerät hörte, lief es mir kalt den Rücken hinunter. When I heard the news on the radio, a chill ran down my spine. Brunnen: Tatoeba

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。

冬天如果用普通杯子喝水，如果没有及时喝，一会就凉了，但是刚到的水又太热，真的很烦恼。如果有一个加热杯垫的话，这个问题就完美的解决了！啥也别说，送她，让她随时随地喝上适口的热水！

But it check here has been gewöhnlich for a very long time to refer to the XXX class, meaning the lesson. Rein fact, I don't remember talking about lessons at all when I was at school - of course that's such a long time ago as to be unreliable as a source