I’ll pay a visit to the Inner Mongolia , there is a large temperature difference between day and night.

Where have you been?— I in the heavy trafficOtherwise I here earlier.[ ]

I don’t know how to use this machine.— It doesn’t matter. You can read the ________.

The question wasat themeeting whether or not the company should employ more workers to increaseproduction.

Your trousers ____dirty， you must have _____washed.