Mary heard someone sing songs in the next room when she got home.这句话有错误的地方吗

Mary heard someone sing songs in the next room when she got home.这句话有错误的地方吗 Mary is always using ＿＿＿pencil she often leaves hers at home.A,someone else's B,else someone'sC,someone else D someone's else let祈使句改not形式!Let me help you.让我来帮你Let Mary come here.让玛丽到这儿来Let someone open the door.让人把门打开吧Let me be heard.听我说Let this be done.做这件事(应该做这件事).Let's not waste our time doing s 根据短文内容写单词,没空一词last night when the film was over,it was dark .i was 1____down the street then i heard footteps behind me.someone was2-__me i was scared and3___to run suddenly that man4__,don't worry,Mary ,it's meoh,my god , I heard that someone was calling my brother's name outside.同义句转换I heard someone _______ my brother's name outside.call one's name是叫某人名字的意思还是骂某人? mary's he heard someone call him.He stopped_______ 3.Someone was shouting.I heard it. —Is this Li Ping's watch,Mary?—I don't think so.It must be( ).A.anyone's else B.anyone else's C.someone's else D.someone else's —Is this Li Ping's watch,Mary?—I don't think so.It must be( )A.anyone's else B.anyone else's C.someone's else D.someone else's理由 Suddenly Wang Fang heard someone _____(呼叫) Fire!Fire!It's highly possible that Daniel will go swimming ____ ____(而不是) skiing. cook someone's There's someone outside.Who ___it be?There's someone outside.Who ___it be?It must be Mary.She promised to come here over at 8:00.A:must B:can C:shall D:need为什么? i heard someone ( ) a song on my way home I heard someone was badly hurt in the t____ accident . I singing someone doing heard my honework while was I I heard someone is singing.(改为简单句) She heard someone was singing（改为简单句）