23. Look at the following notice. KEEP OFF THE GRÁSS! The warning above means that pedestrians should... the grass. not cut not keep C. not water d. not walk on a. b. 24 Look at the following notice. ALL VISITORS MUST REGISTER AT OFFICE What does the notice mean? a. b. C. All visitors can work in the office without registering. All visitors must work at the office. All visitors are permitted to enter the office after registering. All visitors are forbidden to enter the office. gribd. 26. Look at the following notice. DON'T USE PRODUCTS MADE OF PROTECTED ANIMALS What does this notice mean?​