汉译英：妈妈让我帮助她,我帮助她了.My mother asked me to help her,and ___ ___ ___.选项见下A：so I did.B：I did so.请问各位是选A 还是选B
问题描述：
汉译英：妈妈让我帮助她,我帮助她了.My mother asked me to help her,and ___ ___ ___.选项见下
A：so I did.
B：I did so.
请问各位是选A 还是选B
答