1, neither, Notice of Assessment is the paper work issued AFTER all your tax stuff is evaluated; 2, vary; 3, i wrote to both, 1 as family letter, the other is like a business letter
关于父母探亲的几个问题：1.Notice of Assessment issued by Revenue Canada shi是指T4 还是Tax Return? 2. 办六个月的签证，是否需体检？ 3. Invitation Letter 是写给谁？父母还是签证官？谢谢!