Many people in the west make ________ a rule to buy Christmas presents for their relatives and friends.
| A．this | B．it |
| C．that | D．them |
Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.
| A．price | B．cost | C．expenses | D．pay |
Darwin counted 225 flowering plants, ________ he collected and brought home 193.
| A．that | B．in that | C．of which | D．all of which |
When somewhat better ________ academically, he returned home to continue his research.
| A．equipped | B．had equipped |
| C．provided | D．providing |
This new teaching approach is specially ______ to develop children’s problem-solving skills.
| A．designed | B．devoted | C．concentrated | D．hoped |
The opening ceremony of Beijing 2008 Olympics is a great success, which is believed ________ the Chinese splendid civilization.
| A．having been displayed | B．to have displayed |
| C．to be displayed | D．displaying |