The word classes included in each category may be roughly classified into: 1. Content words, which include nouns, adjectives, most verbs and most adverbs.
As you can see, word formation is important as it allows language learners to increase their knowledge of word classes and helps them to increase their vocabulary base.
And, lastly, we do not use articles in relation to the general role of most common places, as with the word “class” in this sentence: When does class begin in DC public schools?
最后,我们不使用冠词来描述最常见地点的一般作用,就像句话中的 class: When does class begin in DC public schools(华盛顿公立学校什么时候开始上课)?
When I first wrote this body paragraph, I noticed that I used the word " class" way too many times, so later on I replaced it with " seminar" , and then later on I replaced it with " session" .