Hill vs. mountain

[Palma]

Test No. incompl/inter-67 "How to attract someone", question 7

Hallo, do you see what you did to that ......... of books when you walked past?

(a) hill
(b) mount
(c) pile
(d) store

Test No. incompl/inter-67 "How to attract someone", answer 7

Hallo, do you see what you did to that pile of books when you walked past?

Correct answer: (c) pile

Your answer was: correct
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Hello! Why "Hill " doesn't fit ?
Thanks

[Alan]

Hill is a word used in geography - a small mountain.
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English as a Second Language
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