What does "one more go" mean? Is it an idiom?

[rich7]

Test No. incompl/elem-26 "The Bells", question 5

I'll have one more ......... and then..

(a) come
(b) find
(c) go
(d) leave

Test No. incompl/elem-26 "The Bells", answer 5

I'll have one more go and then..

Correct answer: (c) go

Your answer was: incorrect
I'll have one more come and then..
_________________________

one more try? kind of?

[yo]

Yes, one more go means one more try.