Perhaps I’d need more context, but I think the missing word would be something along the lines of les or something. I’m new to Spanish, sorry.
1. No hables.
2. No lo vendas.
3 No salgas.
4 No lo hagas.
5 No vayas.
To answer you need to read a text or watch a video, how can I help you?
Answer:
corren is the correct answer
The correct answer is “ Los muchachos trabajan”