A recent goverment report has warned that ___ we act ...

★ Grammar for IELTS

A recent goverment report has warned that ___ we act immediately to reduce pollution, there will be serious consequences for the planet.

A. provided that

B. in case

C. unless

Preview next quiz:

Doctors have ___ us to cut down on salt in our diets if we want to reduce the risk of getting heart disease.

A. insisted

B. suggested

C. advised