Don't Let the teacher catch you _____.
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cheating
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to cheat
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cheat
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cheats
A
Correct answer
Explanation
The verb 'catch' in the sense of discovering someone doing something they shouldn't is followed by the object + -ing form: 'catch someone doing something.' 'Don't let the teacher catch you cheating' means don't let the teacher discover you in the act of cheating. The infinitive 'to cheat' or base form 'cheat' would be grammatically incorrect here.