on behalf of，dozens of，be harmful to，have effects on，contribute to，make use of，no longer，add to，turn up，deal with

（1）Anxiety disorders

have effects on

have effects on

your health.
（2）Bill would

turn up

turn up

the TV in the other room，so I heard it clearly.
（3）Taking regular exercise

contributes to

contributes to

good health.
（4）Sport is

no longer

no longer

so important in the school timetable.
（5）The child

made use of

made use of

the desk to help him to get the bottle.
（6）

Dozens of

Dozens of

doctors and nurses have been working day and night for weeks.
（7）When carbon is

added to

added to

iron in proper proportion，the result is steel.
（8）I had made arrangements for my affairs to be

dealt with

dealt with

by one of my children.
（9）John accepted the championship award

on behalf of

on behalf of

the team.
（10）Of course，too much stress

is harmful to

is harmful to

our bodies and minds.