Nowadays, some hot network languages are even          in some official media, such as CCTV and People’s Daily. 

After a long walk, Mary’s legs _____ and she couldn’t run any further.

The people in some countries ________ freedom.

Voices were _____ as the argument between the two motorists became more bad-tempered.

Under the new schedule, school teachers must ______each class on time, instead of adding extra lessons.