1. Don't touch.

Question

2. Don't take pictures
3. Don't bring pets.
4. Don't bring/use _______________.
5. Don't use cellphones.
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There are five kinds of signs. They are stop signs. There is a line from the top left to the bottom right. Are the explanations correct? As for #4, there are a drink and a sandwich. In this case which sentence should we use as a stop sign?

Answer 1

For #4?

Don't bring food inside.

or

Don't eat food inside.