He turns a deaf ear to his parents, ________ many times they have pointed out his weakness.
| A．whatever | B．whichever |
| C．however | D．whenever |
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 |
A much better way must be found to achieve an equal ________ of the resources.
| A．distribution | B．contribution | C．catalogue | D．separation |