6. I think Helen needs to do more studying or she … her exams.
a. willn't pass – Wrong – the form 'willn't' doesn't exist in English.
b. won't pass – Correct – you use the form will/won't + base verb to make a
prediction based on personal opinion.
c. will not to pass – Wrong – you don't need the word 'to'.
d. won't to pass– Wrong – there is an extra word