有香港駕駛執照，可以免考 Class G換加拿大駕照嗎?聽說提交一封駕駛經驗證明書就可以，但我問過運輸署，他們回复只有駕駛執照細節證明。?

The answer is no.

Ontario is the only province that issues Class G license, which does not recognize Hong Kong for licensing purpose.

See here for more detail:

https://www.ontario.ca/page/exchange-out-province-drivers-licence