A small set of conjunctions, prepositions and pronouns belong to __________ class, while the largest part of nouns, verbs, adjectives and adverbs belongs to __________ class.
出自:信阳师范学院-英语语言学

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块