You should go to see him when he is so seriously ill. he is your brother. A. BecauseB. Af

问题补充：

You should go to see him when he is so seriously ill., he is your brother.

A. Because

B. After all

C. At all

D. Above all

答案：

A. Because

(答案→)B. After all

C. At all

D. Above all

解析：考查短语辨析。A因为（引导原因状语从句）B毕竟；终究；C根本，全然；D首先，最重要的是；句意：当他生病的时候，你应该去看看他的，毕竟，他是你兄弟。After all作为：毕竟。提醒对方不要忘记…。故B正确。