Good manners vs. Bad manners

[Ninel]

Test No. incompl/elem-12 "We went on holiday", question 10

It is considered bad ......... to shout at someone.

(a) habits
(b) ways
(c) manners
(d) custom

Test No. incompl/elem-12 "We went on holiday", answer 10

It is considered bad manners to shout at someone.

Correct answer: (c) manners

Your answer was: incorrect
It is considered bad custom to shout at someone.
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why is there manners - plural?

Nina

[Alan]

Manners in the plural suggests behaviour (good/bad manners) and it could not be custom because it would have to be a custom.
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English as a Second Language
You can read my ESL story A New Season

[Guest]

[Alan]

Good manners/bad manners refers to the way someone behaves towards other people. Good habits/bad habits are things that you practise on a daily/regular basis and do not refer to the way you behave. For example good habits are considered to be: taking exercise/eating fresh food/being tidy. Bad habits are considered to be: smoking/drinking too much/ eating potato chips.
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English as a Foreign Language
You can read my EFL story Make or Do?

[Alex Anna]

And why dont we use "way"? can u explain for me, Alan? Thanks for all.
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I am studying English everyday ^^