It is reported that 40 percent of the land in Brazil________covered with trees.

A．is B．was C．a(chǎn)re D．were

 

A

【解析】答案　A　[考查的是數(shù)量詞作主語時的主謂一致。句意：據(jù)報道，巴西百分之四十的土地都有森林覆蓋。40 percent修飾the land，the land表示“陸地”時是不可數(shù)名詞，謂語必須用單數(shù)；又因為主句謂語動詞是一般現(xiàn)在時，因此選A。]

 

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