1.A sad expression,an instructive expression,a new expression,a logical expression.
2.A nervous answer,a nervous person,a nervous tic,a nervous failure.
3.An indifferent person,an indifferent glance,an indifferent conversation,an indifferent relation.
4.To require food,to require a salary,to require good attitude,to require help.
5.To predict one's answer ,to predict the future,to predict behavior,to predict a destiny.
6.A variety od species,a variety of colors,a variety of flowers,a variety of chocolate.
7.worn out sandals,worn out dresses,worn out coat,worn out boots.
8.To make a record,to break the record.