Whether in Old English or Modern English, complementizer has to be filled in interrogatives.

无论在古英语还是现代英语中，疑问句中要填充补语成分。

Interrogatives function to draw attention and stress but not to ask for the answers.

疑问语气不是为了得到回答而是为了引起注意和强调。

Those sentences could be categorized into declaratives, imperatives, and interrogatives.

这些句子可以分为陈述、命令、疑问句。

Whether in Old English or Modern English, C ( complementizer) has to be filled in interrogatives.

无论是古英语还是现代英语，其构成疑问句时，主语之前必须有填充词。

They also have the knowledge that English modal verbs should be placed on the left of the negator and at the beginning of the interrogatives.

这说明受试具有英语定式句中题元动词不能显性提升而情态助动词必须显性提升的句法知识。