How many time zones are there in the world?
举一反三
- How many days did God create the world?
- There are ......time zones in Russia.
- How many people in the world are speaking English as their first language?
- How many pills should be taken each time?
- Strange things happen to time when you travel because （）. A: no day really has twenty-four hours B: the earth is divided into time zones C: time zones are not all the same size D: no one knows where time zones begin