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A slightly unhinged magical bakery needs to print warning labels for their new "Cursed Croissants." Choose ALL the grammatically valid warnings that could be printed on the back of the packaging.
Select ALL that apply:
The correct answers are Should you experience spontaneous levitation, please contact customer service immediately and Should the pastry begin to sing, do not attempt to harmonize with it.
First conditional sentences can be inverted by replacing If with Should. This makes the condition sound slightly more formal or less likely to happen.
Crucially, the verb that follows the subject in this structure MUST be a bare infinitive (the base form of the verb without to or an -s ending).
Therefore, "Should you to experience" and "Should the pastry begins" are grammatically incorrect.