– How long has Mr. Green been in Beijing?-- It ____ half a year since he ____ there.A. is; moved B. was; move C. was; moved
David is going to travel _________ the world.
Anna wants to study English and she’s going to study economics(经济)________.
The Greens are going to ________ Dalian next year.
My aunt is going to retire(退休)___________.
Lucy is going to be a computer programmer when he _______ college.