behaviour vs. behavior

[Aman]

Business Idiom in English, Intermediate level

ESL/EFL Test #64 "How to apologize", question 4

There's really no ......... for my behaviour last night. I can only think that I'd had too much to drink.

(a) exception
(b) escape
(c) excuse
(d) exclusion

Business Idiom in English, Intermediate level

ESL/EFL Test #64 "How to apologize", answer 4

There's really no excuse for my behaviour last night. I can only think that I'd had too much to drink.

Correct answer: (c) excuse
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u spell behaviour wrong

Aman

[Lost_Soul]

It can be spelled both ways: as it is written here in the test (British version) and behavior (American version)

[Conchita]

Actually, 'behaviour' is the standard British spelling.

Edit: Sorry, Lost Soul, I hadn't seen your post!