By the time we reach New York on Friday, we______ over 6 hours traveling.
A.will have spent
B.will be spending
C.have spent
D.will spend

The line that divides North and South Korea is the most ____ armed border in the world.
A.formerly
B.kindly
C.truly
D.heavily

It doesn’t matter ____ Sue tries, she still can’t pass the driving test.
A.how far
B.how hard
C.Ø
D.how good

Do I have to wear a suit and tie or can I dress more ____?
A.casually
B.unofficially
C.naturally
D.loosely

By the end of this month, I __ for this company for two years.
A.have been working
B.will have been working
C.will be working
D.will work

By the time I come back, you __your assignments.
A.will finish
B.will be finishing
C.have finished
D.will have finished

“Will you ___ with the equipment by 12:30 p.m.?” “Possibly, but I’ll let you know beforehand.”
A.finish
B.have finished
C.be finishing
D.finished

By the year 2050, many people currently employed _____ their jobs.
A.will be losing
B.will have lost
C.have lost
D.are losing

By the time my younger son turns 26, I__
A.am retiring
B.have retired
C.will have retired
D.have been retiring

“How long have you been with the company?” “By next month I ___there for a year.”
A.will be working
B.will have been working
C.am going to work
D.have worked