i often hear her （）after class.答案是sing,我认为应该填to sing啊,应为hear是动词sing也是动词啊退一步说,就算填sing也得加s啊,因为是her啊,

i often hear her sing a song变被动句 I often hear her （）in her room . Ato sing BsingingI often hear her （）in her room .Ato singBsingingCsingDsings I often hear her ____________after class.A.to sing B.sang C.sing D.sings 为什么不是D I often hear her sing in the next room.We must repair the computer now.（都改为被动语态） I often hear her sing this songsing不用第三人称单数吗?为什么不是时间是I often hear her sings this song I often hear the girl-----next door.when ipassed the door,I heard her---just now.A.sing ;singing B sings:sing I often hear her _____ (sing)in the next room last year.为什么不能用singing? I often hear her _(sing) in the morning ,填什么?为什么 I often hear her ()english songsA sing B for singing C sings I often ____(listen to,hear) her reading in the room.急 i often hear her （）after class.答案是sing,我认为应该填to sing啊,应为hear是动词sing也是动词啊退一步说,就算填sing也得加s啊,因为是her啊, I often hear her___the English song in her room.A sing B to sing C sings D singing答案是A我只是想知道hear sb do中的do 需要三单式变形吗 i often hear jim ----（play）violin at home I often hear the song _____on TV.（sing） I‘ve often heard her sing this song.与I often hear her sing this song.使用了完成时态,有什么不同的吗? you her do hear often singyou her do hear often sing连问句 (1)I often hear some students say English is difficult ,and it gives them a headache.将画线句子（1）改为同义句（一空一词）I often hear some students say English is difficult,and it _______them______a headache. We often hear her sing this song.(改被动语态）