A linguistic theory is constructed about what ______ is and how it works.
A、langueC
語言的研究過程可以總結為：首先，要觀察某些語言材料，從而發現一些共性并對其加以總結;其次，根據這些總結提出一些假設來解釋這些語言材料，然后再通過進一步的觀察來驗證這些假設的正確性;最后建立一套語言學理論來說明語言的本質內容以及這些語言是如何發揮作用的。
Linguistscanconcentrateonalltheaspectsoflanguageatonce.
Itisnotdecided________theconferencewillbeheld.
Werefertothelimitedrangeofsoundsasthephonicmediumoflanguageandindividualsoundswithinthatrangeas______.
Thereply,whenitfinallycame,was________thenegative.
Thethieftookawaythewoman’swalletwithout________.
