Помогите срочно дам 20 баллов вставить пропущенные слова should, ought, to orshouldn't ,...

Question

Помогите срочно дам 20 баллов вставить пропущенные слова should,
ought, to orshouldn't , oughtn't to.
1You.....always listen to the teacher.
2You.....talk to others.
3You.....ask questions if you don't understand.
4You......chew gum.

Answer 1

1 you should always listen to the teacher.
2.you you ought to talk to others.
2 ypu should ask questions if you don’t understand
4 you ought not to chew gum.