Circle the correct item. 6 You...... into trouble if you do that again.

The correct answer is A. This is a first conditional sentence. The structure is 'If + present simple, will + base form of verb'. The sentence is 'You...... into trouble if you do that again.' The missing part is the base form of the verb that describes what will happen. 'Get' is the base form of the verb. Therefore, 'get' is the correct choice to complete the sentence.