The potential of economic development of one region varies from ______ of another.
| A．any | B．that | C．one | D．some |
---- Shall we go to the art exhibition right away?
---- _____.
| A．It’s your opinion | B．I don’t mind |
| C．It’s all up to you | D．That’s your decision. |
_______the programme, they have to stay there for another three weeks.
| A．Not completing | B．Not completed |
| C．Not having completed | D．Having not completed |
--- Is Mr. Smith in the office?
--- Yes，_____ he is in charge of the office，he must be there.
| A．however | B．since | C．whether | D．for |
He moved to Germany in _____, when he was in _____.
| A．the late 1990s; his sixties | B．late 1990s; his sixties |
| C．the late 1990s; the sixties | D．late 1990s; the sixties |
______ the day went on, the weather got worse.
| A．With | B．Since | C．While | D．As |