Вставьте модальный глагол: 1) To pass to exam, Sara ____ to study more hours a day. 2) I ____ help my sister with her homework. 3) There is lack of rise, someone ___ to go to the store, otherwise we’ll stay without dinner.
Ответ:1)should
2)can или should
3)must
Объяснение:1)should (cледует)
2)can или should (может или следует)
3)must(должен)