Who's the tallest student in your class?--Mary ___A.does B.has C.was D.is
问题描述：
Who's the tallest student in your class?--Mary ___
A.does B.has C.was D.is
答
Mary is 是下句的省略形式:
Mary is the tallest student in our class
答
D
因为前面 who's 是 who is 的缩约式
答
D,原句是who is the tallest student in your class?答句就为Mary is.