Change the given verb into the appropriate form

Exercise 1
Change the given verb into the appropriate form.
1)She didn’t know who ______ to for help. (turn) 
2)‘I don’t think he will admit to his fault.’ - ‘ I agree. It takes courage ______ the truth.’ (reveal) 
3)‘So, whose fault is this?Jane’s or Brian’s?’ - ‘____ fair, both are partly _______ .’ (be - blame)  
4)Sarah is honest and by no means pretentious but she _____ be obstinate once in a while.’ (tend) 
5)‘She was great, wasn’t she?’ - ‘Absolutely. I can’t recall the last time I heard her __________ such a vehement and glowing speech.’ (deliver)