can you tell me some other roles ____ forests play in nature and _英语解答

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

人气：442 ℃　时间：2020-03-25 13:07:30

解答

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?