Exertion is countable

[Strawberry girl]

Test No. incompl/inter-27 "The Two Dogs", question 6

All the house dog did was simply to feed himself on the results of the ......... that the hound dog undertook.

(a) exertions
(b) extremes
(c) exercises
(d) excesses

Test No. incompl/inter-27 "The Two Dogs", answer 6

All the house dog did was simply to feed himself on the results of the exertions that the hound dog undertook.

Correct answer: (a) exertions

Your answer was: correct
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Hi,
Does the word "exertion" mean try very hard at sth?Can this noun word add -s here?I think this word is an uncountable word,am I right?

[Alan]

Hi Strawberry,

Exertion means a great effort and can be used as a countable noun.

Alan
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English as a Second Language
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