John is the tallest boy in the class, ________ according to himself．
A.five foot eight as tall asB.as tall as five foot eightC.as five foot eight tall asD.as tall five foot eight as在线课程B
解析：
as tall as意为“高达……”．首先要了解foot(英尺)的复数形式可以是foot，也可以是feet．as tall as five foot eight意为：高达五尺八寸．类似的例子如：He can drink as much as 8 bottles of beer for a meal．他一餐可以喝多达8瓶啤酒．