We’ll live a happier and ...... life if we keep our environment clean.

A. health B. healthy C. unhealthy D. healthier

Don't eat those vegetables. They're ............

A. poison B. poisoning C. poisoned D. poisonous

You should write a letter of ..... to that institute.

A. inquire B. inquiry C. inquisition D. inquisitor

Physical ______ are good for our health.

A. activities B. activists C. actions D. acts

English is an ______ language to learn.

A. easiness B. easily C. easy D. ease

Their___________ has lasted for more than 20 years.

A. friendly B. friend C. friends D. friendship

You will have to work hard if you want to ___________.

A. succeed B. successfully C. success D. successful

The sick man still finds it _____ to stand without support.

A. discomfort B. comforting C. uncomfortable D. comfortable

The referee had no hesitation in awarding the visiting team a _______.

A. penalty B. penalize C. penal D. penalization

They are going to _______ the pool to 1.8 meter.

A. deep B. depth C. deepen D. deeply