Our school has about 100 computers, but only sixty percent ____ used regularly.
Voices were________as the argument between the two taxi drivers became more badtempered.
The exhibition gives local artists an opportunity to________their works.
It's really very dangerous. One more step,________the baby will fall into the well.
The manager has________to improve working conditions in the company.
All the preparations for the task________, and we're ready to start.