Parents have a responsibility to educate their children.

Regular exercise is an effective way to improve your overall health.

Improving efficiency is crucial for success in any business.

This new software is very efficient.

Either day is OK.

I don't like either.

I accidentally bumped my elbow on the table.

The election is scheduled for next month.

I need to call an electrician to fix the electrical problem in my house.

The city experienced a sudden loss of electricity [[due to]] the storm.