a)My immediate plans include the TOEFL examination as soon as the Army will grant me the right to take the exam.
b)My immediate plans include the TOEFL examination as soon as the Army will grant me the right to participate in the exam.
c)My immediate plans include the TOEFL examination as soon as the Army will grant me the right to .
Well i am not sure which one is correct. What i am trying to say in one sentence is that when u are enlisted in army u do not have the right to do anything. I need to ask permission for the examination and wait until the day they will accept my request.