If everybody ___ (not start) worrying about global warming, we ___ (not prevent) the destruction of Earth.
doesn't start, won't prevent
Flexitarians consume less meat in case it ___ (prove) harmful for the body.
proves
Students ___ (study) eagerly unless the teacher ___ (discourage) them.
will study, discourages
I ___ (carry) a cookbook with me everywhere in case I ___ (meet) Robert Makłowicz.
will carry, meet
