问题

________, no one is sure who discovered America
A:As a matter of fact
B:As the fact of matter
C:As the matter of fact
D:As a factual matter
B:As the fact of matter
C:As the matter of fact
D:As a factual matter
正确答案是:
同类题型
Have you known each other for long- Not really ________ we started to work in thisschool
Retired French soccer player Zidane said that he happy to do something for children.
________ — He is modest and energetic.
Every possible means ________ to prevent the air pollution, but the sky is still not clear. [ ]