The children asked her mother ______________ go out to play tennis.
When we ___ a foreign language, we’d respect its ____, or we can’t really learn it well.
. Some animals are in danger, and the scientists are doing ___ they can ___ them.
. The Olympic Games in the year 2008___ in Beijing of China, which known to us all.
. If law and order _____, neither the citizen nor his family is safe.
The boy and girl each _____ their own toys.