【题目】New regulations make it clear that to use children's information, network operators ______ obtain the children's guardians' permission in a clear manner
A.mayB.shallC.couldD.might
在线课程【答案】B
【解析】
考查情态动词。句意：新规明确规定，网络运营商使用儿童信息应明确获得儿童监护人的许可。情态动词shall用于陈述句的第二、三人称表示允许、威胁、恐吓、义务、命令等。故选B。