配偶和小孩體檢，打指紋，麵試是否都可以在加拿大做？謝謝！
-He may just file I-485 by himself. Then, file I-824 just after his I-485 is approved, in case USCIS feel confused because some of the immigration officials are not experienced. USCIS will not approve the I-824 until the I-485 is approved even if he files it now.
