第1个回答 2021-07-10
否定句直接在be动词后加上not即可,所以应该是She isn't singing.
一般疑问句则把be动词提前,其他保持不变,所以应该是
Is she singing?
特殊疑问句需要用到特殊疑问词,对singing提问,要用what,后面紧跟一般疑问句,所以应该是What is she doing?
第2个回答 2021-07-09
改为否定句为:She is not singsing.
改为一般疑问句为:Is she singsing?
对singing提问为:What is she doing?
第3个回答 2021-07-10
否定句:She isn't singing
一般疑问句:Is she singing?
特殊疑问句:What is she doing?
第4个回答 2021-07-10
改成否定句是:She isn't singing,
改成一般疑问句是:Is she singing?
对singing进行提问是:What is she doing?