mr smith has ( )and he is quite able to pay for the house A million dollars B millions of dollars
问题描述：
mr smith has ( )and he is quite able to pay for the house A million dollars B millions of dollars
C millions of dollar D million of dollars （解析）
答
B million dollar两个词都可数,都有复数形式,且表单位的数词前没有准确数字时要用复数+of的结构表示“数以...计的”,此处数百万美元,美元当然用复数了