...(敲门)B:Who is that?A:It's Eva.(或I'am Eva)2、打电话的时候A(打电话)B:(接电话)Who is that?A:This is Eva3、日常交谈,问“他/她/那是谁?”A:Who is that?B :He/She is Eva.(或That is my sister)也有这么说的:绝对不能用this 和that来回答...
省略?倒装?前置?这个句子里面包含的是什么语法知识?Since the beginning of the new century, of the five percent increase in the global green leaf area, one quarter has come from China.