This is not about passport pages, you do not need to send all your passport pages but just the biometric page. your passport needs to be in the 5 years eligibility period, If not you need to explain why.I don’t understand why they mentioned the 5 years eligibility since I passed 1095 days in Canada. I missed few passport pages but other than that it should be fine. I’ll double check tomorrow with agents. I’m so confused by the 5 years eligibility.