They или we в завимости от контекста
Teachers must teach students
Teachers must check student's homework
Teachers must be smart
Students must study well
Students must listen the teacher while the lesson is going on
Students must do their homework
1)Will he sleep in the kitchen?
2)Will Santa Claus wear a red jacket?
3)Willl the cake be yummy?
4)Will we read about interesting man?
5)Will they take a bus?
6)Will his friends (или they) play football in the morning?
Summer favorite time of year Jim