— Is Russia _____ European country? — Yes, though a large part of it is in _____ Asia.
| A．a; a | B．an; the | C．a; / | D．an; / |
This process has not only laid a solid foundation for China to develop into the future, but also _________ the prosperity(繁荣) of Asian economy and the world economy.
| A．depended on | B．contributed to | C．approved of | D．sweep up |
Keep on trying!________ practice is the groundwork for success in playing the piano.
| A．Instant | B．Constant | C．Eager | D．Demanding |
Geologically Diaoyu Islands are ________ Taiwan Island. The waters between the islands and Taiwan are only 100 to 150 meters deep.
| A．attached to | B．divided into | C．separated from | D．cut off |
The lecture was going well until the projector(幻灯机) ______ and put the professor off his stride.
| A．broke down | B．broke up | C．broke away | D．broke off |
However, ___________ the technological difficulties of preparation, this material affords a further wide field of application(用途).
| A．rather than | B．rather too | C．apart from | D．apart with |