Error should be followed by an

[Lutchi]

English Synonym, Elementary Level

ESL/EFL Test #72 "Synonyms for mistake and error", question 1

It is a ......... to argue with your friends.

(a) error
(b) fault
(c) mistake
(d) slip

English Synonym, Elementary Level

ESL/EFL Test #72 "Synonyms for mistake and error", answer 1

It is a mistake to argue with your friends.

Correct answer: (c) mistake
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error should be followed by an

Lutchi

[Daniela]

Dear learner,
That's right, the article before "error" should be an. What is more, "error" is usually used in a more formal situation or for example, when you type a wrong letter in a word/ sentence/ text, etc.
Daniela
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[Duc]

But why isn't it B
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Don't see your shade think you are great

[Giang93]

You can read the explanation of them from http://forum.wordreference.com/showthread.php?t=391025 or http://www.english-test.net/forum/ftopic22581.html

[Giang93]

and http://www.english-test.net/forum/ftopic8796.html also