I started working as an intern for a company since Jan 1 2017 until may 31 2017 as an Intern and started to work full-time for the same company from june 1 2017. I have the T4 for my taxes but it does include the intern part of my work too. I am applying for CEC, until june 1 2018 I have worked 1 year full-time. In my letter of explanation should I mention that the T4 includes the intern part? I haven’t added that to work experience section. Do I need to show proof my internship? like contract?