英语 One-third of the area _______ covered with green trees.About seventy percent of thetrees _______ been planted.A.are; have B.is; has C.is; have D.are; has
问题描述：
英语 One-third of the area _______ covered with green trees.
About seventy percent of the
trees _______ been planted.
A.are; have B.is; has C.is; have D.are; has
答
C. is; have
三分之一的地区被绿树覆盖。已经种植了大约百分之七十的树木。
One-third of +单数名词+单数谓语
seventy percent of +复数名词+复数谓语
答
C. is; have
答
C
因为第一句的主语area是不可数名词,所以用is
第二句的主语trees是可数名词的复数,所以用have.
答
分子是1，所以是is
因为是percent 所以用has 选b
主谓一致中碰到of短语是看of前面的词的