we are experiencing a serious situation _people are sufferin
5个回答

定语从句的关系词的判断是使用“先行词代入法”,

即把先行词代入定语从句中去,看先行词在定语从句中所占的成分:

若先行词在从句中做主语、宾语或定语则选择关系代词(who/whose/whom/that用于指人,which/that用于指物);

若在从句中做状语,则选择关系副词(where/when/why)

那么回到这句

in the situation( in which)___people are suffering from diseases related to the pollut

明显是作状语,不能作宾语也不能作主语

而本题中只有D.where 可以作状语.

所以选D.where