1. The immigration officer might believe her or he might not, I was told.
    我被告知大使馆移民官员兴许会相信她、兴许不会。

2. After the Customs , you must show your passport to the office at Immigration.
    通过海关之后，你必须在移民局出示你的护照。

3. "The immigration officer might not let her in without a green card," he warned.
    他警告我说："没有绿卡，移民官员可能是不会让她入境的。"