2. ______ is reported in the newspapers, talks between the two countries are making progress. A. It B. As C. That D. What（正確答案是B，為什么不是A，不是形式主語嗎）

熱心網友

強調句型是：It is/was ...that... 強調句為：It was reported in the newspapers that talks between the two countries are making progress.強調部分是in the newspapers 意思是：正如報紙上所說的那樣，這兩國的談話正在取得進展。As引導非限制性定語從句，表正如...一樣。可置于句首或尾，也可句中。類似詞有：as is konwn to all as we had expected等。

熱心網友

as 引導非限制性定語從句，代替整個后面句子還可以表原因

熱心網友

2. ______ is reported in the newspapers, talks between the two countries are making progress. A. It B. As C. That D. What答案是B.沒有問題。as 引導非限制性定語從句，代替整個后面句子，譯成正如報紙上報道的...as is known to us, Taiwan belongs to China.要是做形式主語的話，句型是it is reported that ...it代替整個從句，后面的從句必須有連詞或者疑問代詞It is known to us that Taiwan belongs to China. It has not been decided whether we will accept his advice.

熱心網友

It is reported in the newspapers that talks between the two countries are making progress. 這樣才對，形式主語中it代后面的talks between the two countries are making progress

熱心網友

as這里做“正如”講如果說it是形式主語的話 ","應該改為that否則是兩個句子用逗號隔開