On what did the ancient Egyptians based their calculation?

What is the best title for the passage?

What do the intersecting lines in the base symbolize?

What was the most probable reason for providing so many hidden passages?

Extraterrestrial beings are ____.    

Yet its widespread effectiveness shows that the remarkable properties are (10) ____ than just a legend.

It is today believed that this remarkable plant may (6) ____ beneficial effects in the treatment of many diseases which are difficult to treat with synthetic drug.

About $700 will buy a student ticket (9) ___ for six months that will take you from London to Calcutta, Singapore, Bangkok, Perth, Sydney, Auckland, Fiji, Tahiti, Los Angeles and (10) ___ again.

About $700 will buy a student ticket (9) ___ for six months that will take you from London to Calcutta, Singapore, Bangkok, Perth, Sydney, Auckland, Fiji, Tahiti, Los Angeles and (10) ___ again.

Also, the gap year is now (6)  ___ by many employers and universities.

These two men’s farms are adjacent ____ each other.

I don’t like to make friends with the person who always runs ____ his old friends.

That fish of yours has been in the fridge for weeks. It must have gone ____ by now.

Minh couldn’t start his motor engine. I think it ran ____ fuel.

My father made ____ his mind to settle in the South.

Behavior therapy uses rewards and punishments to encourage patients to act  in a way healthier.