A-A+
One-third of the area ______ covered with gree
问题详情
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
参考答案
C“分数或百分数+of the+名词或代词”做主语时，谓语动词的单、复数形式取决于名词或代词的单、复数形式。
