_______isafactthatEnglishisbeingacceptedasaninternationallanguage.
D
为了保持句子的平衡，往往用先行词 it 作形式主语或形式宾语，而把真正的主语或宾语放到后面，尤其是 that 引导的主语从句往往用先行词 it 作形式主语。此句也可以改写为： That English is being accepted as an international language is a fact.
Ifyouarewalkingawayfromaclocktower，youwillhearthetickingoftheclockfadetoapoint________itcannotbeheard.
Lying under the skull, the human brain contains an average of ten billion nerve cells called ______.
______ofasentencedependsonthecontextinwhichthesentenceisuttered.
Bloomfield drew on ______ psychology when trying to define the meaning of linguistic forms.