题目内容
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
C?
解析:
“分数或百分数+of the+名词或代词”作主语时,谓语动词的单、复数形式取决于名词或代词的单、复数形式。?
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