UNIT 4

Smiles can be quite _____, causing others to smile too.

• infectious

• mysterious

• therapeutic

Studies are finally starting to cast light on the _____ secrets of smilling.

• mischievous

• mysterious

• severe

Whether it's a(n) ____ smirk or a huge grin, a smile can tell us a lot about a person.

• mood-enhancing

• infectious

• mischievous

Mona Lisa's smile _____ the imagination of viewers for hundreds of years.

• has lifted

• has captured

• has revealed

Many viewers find the painting _____ their spirits and gives them a sense of hope.

• lifts

• reveals

• displays

Mary's beautiful smile makes an impression ____ everybody she meets.

• on

• at

• for

The best response ____ a smile is to smile back.

• at

• for

• on

• to

Your smile can have a positive impact _____ the people around you.

• at

• on

• to

Regular training is the only way to build up _____ in order to complete the 10km race.

• disease

• mood

• stamina

• recovery

A great way to boost your _____ is to meet up with close friends.

• stamina

• therapy

• mood