Toxic chemicals from factories are one of the serious factors that leads wildlife to the ____ of extinction.

“How was your exam?” “A couple of questions were tricky, but on the _____ it was pretty easy.”

Could you please____________ an appointment for me to see Mr. Smith?

Since he started his own business, he has been making money hand over ________.

Indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Sheila had butterflies in her stomach before the interview.

My father _______when he found out that I’d damaged the car.

You know times have been bad lately, Peter, but keep your _______up; things are bound to get better soon.

He was a much older tennis player but he had the great ______of experience.