Why is it wrong: Drink your coffee before it gets cold?

[Alma]

English Language Tests, Intermediate level

ESL/EFL Test #142 "Time clauses: future tense examples", question 7

Drink your coffee ......... it gets cold.

(a) when
(b) as soon as
(c) while
(d) before

English Language Tests, Intermediate level

ESL/EFL Test #142 "Time clauses: future tense examples", answer 7

Drink your coffee before it gets cold.

Correct answer: (d) before

Your answer was: incorrect
Drink your coffee while it gets cold.
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why is it wrong:
Drink your coffee before it gets cold?
isn't possible use before in this case?

Alma

[Mister Micawber]

.
If you will look immediately above your question, you will see that 'before' is the correct answer. You chose 'while'.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber