我们是加拿大公民，我H1B，刚刚收到通知绿卡寄出来了，没想到这么快。我先生一直是H4往返中国美国，没有跟我一起申请485. 他目前在中国，十一月回来。
我的问题是
1. 他这回以什么身份入境美国？
-He can not enter US using H-4 visa anymore, but he can enter US using B-2 visa (if he is also a Canadian citizen, he can just use the passort to enter US, not need a visa).
2. 他申请绿卡是走亲属移民从I-130开始吗？看您的文章说“只有在你的配偶在婚前就拿到了绿卡，你才
归属亲属移民类“。
-No. He can file I-485 any time if he is physically present in US as long as your priority date is current (he had better file I-485 after he enters US for 3 months or more later in this case). Or you file I-824 for him to apply for an immigtration visa in China or Canada (if he is a Canadian citizen) by following-to-join.
3. 如果他不申请绿卡，能以旅游签证往返吗？
-Yes.
