Idiom: "I'll have a go"

[mario]

English Language Tests, Intermediate level

ESL/EFL Test #211 "What Comes Next? (5)", question 8

Promise me that at least you'll try this exercise, won't you? Answer: ..........

(a) I'll have an effort
(b) I'll have a trial
(c) I'll have a go
(d) I'll have a trial

English Language Tests, Intermediate level

ESL/EFL Test #211 "What Comes Next? (5)", answer 8

Promise me that at least you'll try this exercise, won't you? Answer: I'll have a go.

Correct answer: (c) I'll have a go

Your answer was: incorrect
Promise me that at least you'll try this exercise, won't you? Answer: I'll have a trial.
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why do I have to use this sentence - I`ll have a go?

[Alan]

Hi,

I'll have a go means I'll make an attempt - I will try.

Alan
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English as a Second Language
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[Itsybitsyspider]

Hi,

I don't know if it's done consciously but we have two same options there; b and d: 'I'll have a trial'

[Alan]

Hi,

'I'll have a trial' wouldn't fit here. It is more common to say: I'll take a trial or I'll try it out.

Alan
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English as a Foreign Language
You can read my EFL story Cool Expressions