We need to ______ a solution to the traffic problem soon.

Answer and explanation

Correct answer: D. come up with

  1. Step 1: 'Come up with' means to think of an idea or solution.
Answer
come up with.
Why not the others: come across with, come out of and come down to don't fit.

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We need to a solution… | College English Test Band 4 (CET-4) - China