-___Amy ____(finish)her homework? -Not yet,she __ still ___(do)it in her room 根据句意用括号中所给动词的适当形式填空
句型转换：
David has already come back from Nanjing否定句
David ___ come back from Nanjing ___
I have felt a bit lonely (since I moved into that house)对括号内的进行提问
____ ____ have you felt a bit lonely?>