Carbon and oxygen taken together,one atom each,gives youthe deadly gas carbon monoxide. taken together是过去分词作定语修饰carbon and oxygen吗?另外,one atom each是什么用法
It is questionable whether this is a good way of solving the problem.这里是it做形式主语代替后面的whether从句吗?如果是的话,语法书上不是说除了that从句和不定式,其余都不能加it做形式主语吗?比如名词短语和what从句等。