Question

14．Both of my friends have already come．（變否定句）Neither of my friends has come yet．．

Answer 1

分析 我的兩個朋友都已經(jīng)來了．
我的兩個朋友都還沒有來．

解答 答案：Neither of my friends has come yet．句中的both of表示兩者都，否定兩者都不用neither of…，故Neither of my friends 做主語謂語動詞用單數(shù)，這里是現(xiàn)在完成時have/has+過去分詞，故has，already是放在肯定句，否定句用yet放句末，故答案是Neither of my friends has come yet．

點評 作代詞時，both指兩人或兩種事物，后面謂語動詞用復(fù)數(shù)．neither，either通常被看作單數(shù)，其后謂語動詞用單數(shù)．
Both of us are students．
Neither is mine．
Either of the magazine is interesting．