28. The Hotel Al Arab, ______ the first and only 7-star hotel in the world, was designed in the shape of a sail of 321 meters.
Warmblooded animals live an active life even in freezing winter,which helps them to ________ their normal body temperature.
People have planted a great many trees in order to ________ wind and sand in the desert.
Traditionally, Chinese people _______ the Chinese characters Double Happiness and stick them onto walls or doors for weddings.
.People like taking photos because photos are the _______ of youth and history and can remind us of many happy scenes.
A much better way must be found to achieve an equal ________ of the resources.