按要求完成句子。
(1)What is he doing?(用sleep回答) He .
(2)She is in the study.(对画线部分提问) is ?
(3)The girl iswatching TV。(改为复数句) The TV.
(4)They are making a plane.(对画线部分提问) they ?
(5)I’m singing.(改为一般疑问句) you ?