_______,Mother will wait for him to have dinner together．

A.However late is he

B.However late he is

C.However is he late

D.However he is late

答案及解析： B

解析：

本题考查让步状语从句.用however引导让步状语从句，后面紧接形容词/副词+主语+谓语+其他.However late he is相当于no matter how late he is．答案为B.