Question 14: It is ________ of businessmen to shake hands in formal meetings.

– familiar + to sb/ with sth: familiar with

Eg: The smell is very familiar to everyone who lives near a bakery.

– ordinary (adj): ordinary, ordinary

Eg: ordinary people like you and me

– common (+ to sb/ sth): common, common

Eg: basic features which are common to all human languages

– typical + of sb/ sth (adj): typical, typical

Eg: It was typical of her to forget.

=> Answer D (For business people, shaking hands in formal meetings is typical.)