Technically, 1) is correct, but 2) is much more natural (and correct as well).
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teechrSentence 2 is correct.Sentence 1 is incorrect because it implies that the toy is not yet stuck there !.A toy is stuck in the gap in a sofa.
teechrSentence 2 is correct.Sentence 1 is incorrect because it implies that the toy is not yet stuck there !.Thank you teechr.
onizoA toy is stuck in the gap in a sofa.Idiomatic response: Are you (just) going to leave it there?