will you stay for some more days?sorry I （） my mother called me to go back at onceAmustn't B may notCcan't Dwouldn't并说明理由
问题描述：
will you stay for some more days?sorry I （） my mother called me to go back at once
Amustn't B may notCcan't Dwouldn't
并说明理由
答
D wouldn't called这里是一般过去时态
will 要变成would
希望能采纳，谢谢了
答
can't
因为前面已经有一个sorry了，已经开始委婉了，所以一定要拒绝掉啊，况且后文印证了，
答
C
这里表示“做不到” 因为母亲叫我马上回去（下文）