____ the temperature falling so rapidly, we couldn't go on with the experience.
| A．Since | B．With | C．As | D．For |
Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.
| A．process | B．practice | C．procedure | D．program |
They were so far away that I couldn't _____ their faces clearly.
| A．see through | B．make up | C．see off | D．make out |
---- May Day is drawing near. Are you going home for the holiday?
---- I haven’t decided yet. I_____ go home, but it all depends.
A. may B.need C.willD must
The earthquake left,______ a lot of damage to Wenchuan.
A. caused B.to have caused C to causeD. having caused
As they couldn’t satisfy my ____, I’m____.now.
| A．needs; starving | B．need; starved | C．needed; starvation | D．needing; hunger |