He asked his sister _________ but she kept it s secretA where she has goneBwhere she was going toC where she was goingD where she is going选哪个?为啥

He asked me whether I____(know)his sister为什么 He asked me whether I____(know)his sister Know前面要不要加would 为什么? He asked his father__him（help） He asked for information about his family. He got on well with his sister. He _____ (argue)with his sister now. He is ______(famous)than his sister. he likes speaking English .so does his sister .同义句 ---- he ---- his sister ---- ---- English He takes good care of his sister .同义句He looks __________ his sister _________. he was too tired ,so he asked his mother not ( ) Don't turn on the light,Bill said to his sister.Bill asked his sister _ _ _ _the light. He often helps his sister learn English(同义句） He ofHe often helps his sister learn English(同义句）He often helps his sister ____ _____ his sister He asked his father _________(介)a new toy he asked me whether I___(know)his name. Because of his ( ),he asked for two day is leave He asked his mother where it happened 和He asked his mother how it happened到底那个句子正确 He asked his sister _________ but she kept it s secretA where she has goneBwhere she was going toC where she was goingD where she is going选哪个?为啥