--Who's taller than Wang Bing?--Who's taller than Wang Bing?--（ ）A.I do B I am C Yang Ling does请给出具体原因,
问题描述：
--Who's taller than Wang Bing?
--Who's taller than Wang Bing?
--（ ）
A.I do B I am C Yang Ling does
请给出具体原因,
答
B
上文是is问的，下文也要用be动词来回答，要对应
答
B+
who IS taller，问答一致，I IS taller than that guy.谓语都是be.
who is the teacher?
i am.
who can do it?
i can/do.
who did this?
i did.
who (do) know that man?
i do/know.
答
B
如果写全，就是I am taller than Wang Bing.
如果选A， I taller than Wang Bing，就缺了个系动词（be），无法与形容词“taller”形成系表结构
同理不能选C
答
B
who is .....? 回答也要系动词作谓语，三个选项只有B了。
答
B
因为问who is 所以回答应该是 ** is taller than wangbing.
如果选A D则谓语是 do 而不是be
B是 I am taller than Wang Bing.省略句
答
b
答
B
答
's =is
who is taller than Wang Bing?
问句中用Be动词,回答也必须有be
所以选B
答
个人觉得选b，am后省略了，a和c答案都一样，人称变了而已，要么同时选，要么同时不选