○○○ embassy ⪢⪢
If you lose your passport, you should contact the embassy.
http://qindex.info/i.php?x=21763

○○○ border ⪢⪢
You need a passport when you cross the _____ .
http://qindex.info/i.php?x=22298

○○○ necessary ⪢⪢
It is necessary to have a passport when you travel to a foreign country.
http://qindex.info/i.php?x=13923

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