Which sentence contains an error in the must-be versus can't-be contrast for present deduction?
The oven is warm, so the bakery must be preparing another batch.
The label is intact, so this mustn't be the sculpture reported missing.✓الإجابة الصحيحة
No train stops here today, so that sound can't be the station express.
All the kennels are open, so the handlers must be exercising the dogs.
الشرح
The sentence about the sculpture is erroneous because mustn't be is not the standard form for a negative deduction. The intact label rules out the identification, so the sentence needs can't be instead.