What best completes the sentence below?

Question

By the time we reach Kalamazoo, we over 1,000 miles.
A.
was traveling
B.
will be traveling
C.
had traveled
D.
will have traveled

Answer 1

The best option to complete the sentence is:

D. will have traveled

So the complete sentence would read: "By the time we reach Kalamazoo, we will have traveled over 1,000 miles."