I might buy a TV, if I can find a ______in the sales.

We’ ll need to apply all our           to this job, for it is very important to us all.

. Seeing her daughter came home safe and sound, the mother felt at ______. 

The Dragon Boat Festival _____ the beginning of the hottest season of the year.

The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.