he has just answered the telephone

he has just answered the telephone He has answered the telephone.这里加has与不加has有什么区别? Nobody answered the telephone. He stopped and answered the telephone.（同） he ___ ____ answer the telephone kept rang until I answered he was just falling ( )when the telephone rang Tom _____(hurry) off when he answered a telephone call. 关于英语的问题请将以下句子改成特殊疑问句：1.My boss answered the telephone.2.He s He has answered all the questions.(对划线部分提问）---- ---- he ---- Nobody answered the telephone.（写同意句） Nobody answered the telephone.的同义句是什么? an old woman answered the telephone 被动语态