Краткое пояснение: В заданиях нужно правильно использовать модальный глагол "have to / has to" и фразы из списка.
- We have to save water the tap while we are brushing our teeth.
- My brother has to walk to school instead of going by car to reduce pollution.
- They have to clean up the bottles and paper, so they use different bins.
- I have to recycle my computer after I finish my homework.
- On Saturday, our class has to water the park near our school.