问题描述：
| Air service now is back to_____ after two days of heavy fog. |
| [ ] |
| A. usual B. normal C. ordinary D. common |
考点提示：形容词
最佳答案： | B |
Air service now is back to_____ after two days of heavy fog. [ ]A. usual B. normalC. ordinary D. com
Air service now is back to_____ after two days of heavy fog. [ ]A. usual B. normalC. ordinary D. com
最佳答案： 