The workers were made ______ twelve hours a day.

The reason for _______ he failed in the exam was that he was too careless.

Teenagers get less and less sleep, them at a higher risk of physical and mental health problems.

There are many people downstairs. What do you think_____

is the news about —According to the new law, people who are guilty of drunkendriving ________ face a fine of up to 2000 yuan.