[請益] come up with

[Monihulk (MoniHulk)]

請問一下

If you don’t hurry up with your proposal, by the time you present it to
the screening committee,
others _____ better ones.
(A) can come up with (B) will have come up with (C) would have come up with
(D) will be coming up with

這題的答案為什麼是B，該怎麼解譯？謝謝

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