There are (11) in the U. S.: If you have to (12) several time zones in 12 hours or less, you may feel an upset of your (13) after the long flight. This is jet lag. Doctors say the best thing you can do is (14) and perhaps have a drink of water and rest at your hotel (15) . Larger airports with lots of (16) have employees who speak languages besides English to help you, but smaller ones don't. You can bring (17) one quart of alcoholic beverages and one carton of cigarettes (200 cigarettes) into the U. S. (18) . If you bring more, you have to pay tax. If you lose something on the plane or can't find your (19) at the claim area, you should report it to your airline. If you lose something in the airport, you should go to (20) .