Complete the sentences using the present or perfect participle form of the verb brackets. 1. (study) ______________literature at university, I still read many of the classics from time to time 2(not know)___________________ anything about geography, he couldn't find Singapore on the map 3(not use)__________________ the software before, she had to ask for help 4.The police officer walked in front of the car,(force)_______ the driver to stop 5(not like)____________football,the boy suggested they all play a different game