what is ()on in every part of the world now ()填什么

what is ()on in every part of the world now ()填什么 Doctors___（need）in every part of the world.填什么?为什么? Doctors ( ) in every part of the world. the tobacco was first grown in what is now a part of the USA which part of the world is australia in? Antarctica is in most southern part of the world what is in middle of the world? 猜谜语:what is in the middle of the world?teacher write on me w We can communicate ___ people in every part of the world ___ 1.Doctor or teacher ____ in every part of the world. I want to be a doctor.Doctors( )in every part of the world,I Doctors ( ) in every part of the world.A.need B.are needing