女儿3月中旬本科毕业，已拿到〇P丅签证（5月份开始），并且已拿到一大公司offer,该公司4月1号邦她申请H1B。
我女儿3月会出境，4月1号前回美国，我的问题是1，毕业了是不是F1就失效了？
-No because her OPT has been approved and also she has a job offer.
2，目前出境对她入境会有麻烦吗？
-Fine. Read this link:
http://www.internationalcenter.umich.edu/immig/fvisa/fj_travelpostopt.html
3，如果可以出境，那么回来的时候用什么身份回来？是F1？〇P丅？可是她的opt5月才开始。另外她持加拿大护照。
-If she has to travel, just bring the I-20, OPT approval notice, the OPT EAD card, and the job offer later to enter US. Because she is Canadian citizen, she does not need to get the F-1 visa, and she can just show her passport and above documents to get the F-1 I-94 at the port of entry when she returns to US. She needs to talk to her school International Student Office before she travels.
