_____you may have, you should gather your courage to face the challenge. A. However a serious problem B. What a serious problem C. However serious a problem D. What serious a problem
举一反三
- (Face) _______ with the serious challenge of traffic jams, the local government began to deal with the problem seriously.
- Compared to civil GPS, what is the serious problem of ADS-B to the drone?
- 如果你当时意识到问题的严重性，并采取措施，结果就完全两样了。 A: Have you realized how serious the problem was then and taken some measures, the result is completely different. B: Have you realized how serious the problem was then and taken some measure, the result will have been completely different. C: Had you realized how serious the problem was then and taken some measures, the result would have been completely different.
- What caused such environmental problem? A: The water that used to feed it has been diverted in an ill-irrigation scheme. B: The overfishing problem is too serious there.
- What was the most serious problem facing William I A: The threat from France. B: The problem with economy. C: His rivals in the court. D: The confusions of society.