Emphatic 'do'? - Where does ist make sense?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
(Mr. Baker has been on a trip around the world. He is telling his friends what it was like to get in touch with so many different cultures.)

I (not care) for American food, but I (like) the Mexican food. Normally I (not like) maize at all, but I (like) the maize I was served at Acapulco. Normally I (not be interested) in strong spirits, but I (enjoy) the Tequila, too.
I (believe) that anyone who gets in touch with a lot of different cultures (become) a world citizen sooner or later. (be) open-minded, but (prepare) yourself for such a journey by reading as much as you can about each country and local customs. (take) as much common sense with you as you can, as it would be wrong to trust everybody who (pretend) to be your friend.