Заполните пропуски правильной формой глагола в скобках. вспомните правило использования conditional sentences type i: if the global temperature (rise), sea levels (rise) too. 8. we’ll threaten our own existence if we (not cut down) on waste rapidly. 9. people (run out of) drinking water one day if they (not use) it more rationally. 10. if he (want) to help the planet, then he (have to) change his habits
8. do not cut down
9. will run out of, do not use
10. wants, will have to