The teacher give instruccions to her students: Bring [blank_start]the books![blank_end], Sit [blank_start]down![blank_end], Don't [blank_start]talk![blank_end], Listen!. She explained them the imperatives and then she leave them an activity: [blank_start]Let's[blank_end] think!, write 3 imperatives in positive, 3 in negative, and 3 suggestion invitation, the students were doing the activity when the techer's books fall, so someone said: Let's [blank_start]help her[blank_end], and everybody help her to organize her books so the teacher said them: Let's [blank_start]wash[blank_end] our hands!, and, when they do it, the teacher go with the students to eat [blank_start]pizza[blank_end] and the students were very happy so they thanked her, so she answer: [blank_start]Enjoy[blank_end] it!.