Phrase "Are you going to wait any longer"

[Folsy]

English Grammar Tests, Elementary Level

ESL/EFL Test #54 "Chit Chat: At the bus stop", question 9

Mike: Oh dear. Are you going to wait any ..........

(a) quicker
(b) slower
(c) former
(d) longer

English Grammar Tests, Elementary Level

ESL/EFL Test #54 "Chit Chat: At the bus stop", answer 9

Mike: Oh dear. Are you going to wait any longer.

Correct answer: (d) longer

Your answer was: incorrect
Mike: Oh dear. Are you going to wait any former.
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what is the meaning of this sentence?

Folsy

[Mister Micawber]

.
It seems straightforward to me, Folsy. The speaker is asking the other person whether s/he will wait longer for the occurrence of some event.
.
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Native English teacher at Mister Micawber's