关于hear

Mary________ an English song at the party yesday. She did wonderfully.
A.heard sing B.was heard sing C.heard to sing D.was heard to sing
我搞不清楚选哪个，请各位帮助选择并说明理由，谢谢！

关于hear 关于hear of, hear about, hear,的问题 关于hope hear 关于see,hear,watch的用法 救命啊！关于《hear me cry》发音问题 英语翻译：hear ，hear of hear about , hear of , hear from listen,hear 请问 hear hear of hear about区别