Bad weather and air traffic are the most common causes of travel disruptions.
举一反三
- Which of the followings may cause flight delay? A: bad weather B: mechanical trouble C: air traffic control D: late arrival of passengers
- 智慧职教: Why has air travel become a common experience?
- Most traffic was not on wheels because （） A: most people could not afford this means of travel B: springless coaches were uncomfortable C: pack horses were better than coaches D: roads were so bad
- I'd rather that they ______ during the bad weather, but they insist that they must return home today. A: don't travel B: didn't travel C: shouldn't travel D: not travel
- Falls are one of the most common causes of fatal and non-fatal injuries ( )among construction workers.