China is a _________ country while Japan is a _________country.A. developed; developingB. development; developingC. developing; developed
Sally asked________________________.
_______ the boy was walking down the street, the UFO landed.
My friend has the same haircut __________ I do.
Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.
I think he is a student, ____?