While the government says there is a(n) ________supply of houses，prices of apartments have been going up these years.
A. parallel B. absent C. abundant D. short
Car dealers also have a tough time in bad economy. Therefore，they have to ________ their business model to overcome the difficulties.
A. admit B. adjust C. replace D. remove
Warmblooded animals live an active life even in freezing winter，which helps them to ________ their normal body temperature.
A. keep up B. build up C. bring up D. pick up
People have planted a great many trees in order to ________ wind and sand in the desert.
A．hold down B．hold up C．hold back D．hold out
Traditionally, Chinese people _______ the Chinese characters Double Happiness and stick them onto walls or doors for weddings.
A. cut out B. cut off C. cut up D. cut down
．People like taking photos because photos are the _______ of youth and history and can remind us of many happy scenes.
A. witness B. guidance C. evidence D. approval
