Помогите плиз!Очень срочно!!!нужно вставить
A.can B.can't C.must D.mustn't
1.Fish _ swim but they_fly.
2.A zebra _ ride a bike.
3.An octopus_play computer games.
4.Tigers_run and jump.
5.You_be late for school.
6.My sister_read very well though she is only 5.
7.Parents_take good care of their children.
8.Our teacher _ speak English perfecty.
9.Flowers_dance and sing.