Can you tell me?A how old your brother isB how old is your brotherC your brother is how ol

问题补充：

Can you tell me?

A、how old your brother is

B、how old is your brother

C、your brother is how old

答案：

解析：句意：你能告诉我你弟弟多大吗？特殊疑问词引导的宾语从句应用陈述句语序，即疑问词+主语+谓语动词，此处是how old引导的宾语从句，故选A。