they are singing English songs.为什么用singing

They are singing in the classroom.对are singing 提问 they are singing English songs.为什么用singing They are ----(crazy)about dancing and singing. They are singing----------.How ------they look.happy.happily all the choldren are very happy.they are singing anddancing. 5.They are singing and dancing in the music room.(对are singing and dancing提问 A:What are you jobs?B:They are singers.A:what can they( B:They( )singing. 英语填空:They are singing and dancing h___ they()in the classroom now A sing B are singing They are singing in the classroom.对are singing提问难就难在are singing被划住了,are好像不能在特殊疑问句里出现 They are singing in the classroom怎样改成否定句、一般疑问句、肯定回答、否定回答、对are singing提问 ENG They speak Eng lish 改成一般疑问句 All the children are very happy .They are singing and dancing是什么意思 The children are singing and d().They are h()a birthday party.括号里怎么填 they are going to take part in a singing contest this afternoon.改为同义句they [ ] take part in a singing contest this afternoon. she is singing They are singing She is a teacher He is an actor They 转换否定句、疑问句、特殊疑问 he is a teacher (否定句)下面都是I am a worker (否) I ___ ___ a worker 2.they are singing and dancing they ( ) singing and dancing