常见的物质检验ppt:there are a lot od beautiful trees on___this side of the road ___ the other

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A neither...or B both...and C either...or D all...or
这题选C,那位能帮我解释一下,为什么B不能选呢?B和C有何区别?请详细点!
both this side of the road and the other 说不通的吗?这种结构就相当于both A and B。

both+ 复数名词 both 是形容词,做定语;
there are high buildings on both sides of the road.
both...and... both 是连词,引导两个并列成分。
both his father and his mother are doctors.

c,你看side是单数就知道了,单数用either...or...
a应该是: neither...nor...

楼主,请看下面的解释:

选 C ,因为both后面必须是复数,那么为什么选C呢?

如果用B,那么他的正确格式应该是:there are lot of beautiful trees on both sides of the road.

说得通,相当于both A and B. 但意思就不一样了:

选B: 道路的两边都栽有很多漂亮的树木。
选C: 道路的这边或那边栽有很多漂亮的树木。

想想实际情况,一条路不见得两边总能同时栽得上树木吧?