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12. On Children Festival, the zoo is always _______ with people mainly children.

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 When you want to relax, you'll have one of the world's _________ cities at your feet, with more than 40% green space and open water to enjoy. 

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 The mountain climbers have to _______ because they were exhausted. 

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You need to ______ your shoes before going inside the house.

 Choose the word whose main stressed syllable is placed different from that of the others in each group.

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 Nam didn’t know the correct spelling so he had to _____ it ____in the dictionary. 

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Factories and companies should be constructed in ________ places only.