Can we use slang in english test?

[ahfan_85]

A piece of cake
Let someone sleep on it
Face the music
...
...

Can we use those slang in english test( etc. TOEFL)

[Mister Micawber]

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You can use it in a spoken interview portion-- if you use it appropriately.
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[ahfan_85]

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You can use it in a spoken interview portion-- if you use it appropriately.
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How about in writing test?

[Francois]

I don't believe these expressions are slang, are they?
It's just colloquial to me.

[Casiopea]

Not in my books. That is, I agree with you, Francios. They're not slang; they're idioms. Perrfectly good English, test or not.

[ahfan_85]

Not in my books. That is, I agree with you, Francios. They're not slang; they're idioms. Perrfectly good English, test or not.

Perfectly good english,so tat's mean i can use them in my writing test?

and wat does 'not in my books'?

sorry coz my english is realy poor...

[Casiopea]

Use them in an essay. It will show that you understand how to use English idioms.

Not in my books means, to my knowledge your phrases are not slang.

[dihen]

Not in my books.

For me that means "In my books those expressions are slang.", because that response can only refer to "It's just colloquial to me.", and not "I don't believe these expressions are slang, are they?", or that response means "Those expression are not in my books.".

[ahfan_85]

yeah~ im clear now..

thxs for teaching me ....

[Casiopea]

You're most welcome.