问题补充：
Your brother promised to help me and the next day.
A. neither he did and neither did you
B. so he did and so did you
C. neither did he and neither you did
D. so did he and so did you
答案：
A. neither he did and neither did you
(答案→)B. so he did and so did you
C. neither did he and neither you did
D. so did he and so did you
解析：so + 助动词 +主语“…也如此”； so +主语+ 助动词“的确如此”。 句意：你的哥哥答应帮助我，第二天他确实帮助了我你也帮助了我。选B
