Use your head, ________ you’ll work out the problem.
If a person has not had enough sleep, his actions will give him _____ during the day.
The good thing about children is that they_____ very easily to new environments.
The building around the comer caught fire last night. The police are now _____the matter.
Don’t be so discouraged. If you ________such feelings, you will do better next time.
The system has been designed to give students quick and easy to the digital resources of the library.