The Yellow River is _____ the Pearl River. A twice long as B twice as long as C as twice longer as D as long twice as
It is clearly stated that these regulations ___ everyone in the community, without exception.
To battle world hunger, the great scientist once traveled to many places where populations _______ faster than crop production at that time.
The government won’t have the public officials ___ asking for gifts or money from people.
Unfortunately, some natural signs which might have helped more people survive the earthquake were ________.
. ___________ the extreme levels of air pollution, city authorities have started to take measures to quickly reduce pollution levels and protect city dwellers.