The manager decided to give the job to ____ he believed had a strong sense of duty.

NASA has made a ________ that our earth has no threat associated with the film 2012 which is based on pure myths.

People who get less than six hours of sleep per night have an increased _____ of dying early．

The environment is exactly everything that affect us in some_____.

There’s no ________ from my bedroom window except for some factory chinmneys.