the endpoint now calling is None是中文什么意思

Mike _(call) his friend on the phone now.为什么是（calling)而不是（is who shall i say is calling?中文意思? the dream is calling NOW is the time?什么意思啊 Is the girl dancing now?什么意思? calling什么意思 中文意思是The system is busy now,we suggest you Is now the 21st century中文意思? Where is the girl now的中文意思 is none of your businsess.的中文意思 None the worse for wear意思是? calling home 什么意思 急!