i can send you the words but i cannot sing the song i must d

YOU can see the words I played on screen but cannot see the I can sing the English song,but can't sing ____.A.best B.wel If I can sing the song to you I'll tell you how my heart was I am sure you know the song happy Birthday you must sing thi If I ()(know) how to sing the song,I have enjoyed you that d I must sing h( )song. Can you ___(sing)the song "litter Star"?NO ,I can't.怎么填,为什么? 求翻译:I'm sorry but I received the item.How can I send you bac I can sing the song.(变为一般疑问句） I want to have the song which name is down,can you send me o i would like to sing a love song gave you,but i can not,beca i have heard you sing the song before句子成分