She has visited many countries中为什么会有has

She has visited many countries中为什么会有has Has she visited China before?为什么用现在完成时? She has not visited Beijing.N___ has she. She has made many friends____now. 英语中has been silent里为什么会有been? she has visited garden city.划线提问 划has visited garden city. H1N1 has hit many countries around the world The man has been to many countries ____China these years His father's company has done b____ with many countries. The __ (invent)has been to many countries. She has (many more)books than he has 中间为什么不能用much more 呢. ______________,Kate has visited many places of interest in t