can you tell me some other roles ____ forests play in nature and people's lifea.why b.where c.that d.which

问题描述:

can you tell me some other roles ____ forests play in nature and people's life
a.why b.where c.that d.which

Which

c that 引导定语从句,在从句中代替roles,因为从句中有play,play a role/roles in是词组,是复数,不用which.
整句话的意思是:你能告诉我森林在自然界和人类生活中还扮演了什么其它角色吗?

c.that
that引导定语从句,修饰roles.又因roles是复数,所以which是不行的.
整句的意思是你能告诉我森林在自然界和人类生活中还扮演了什么其它角色吗?

d.which
a.why b. where 明显排除
由于roles是复数,在此不能用that,所以选D。