请选择DCBA2a.U;f0^2V2R5r "Keep off the grass" means __________.8H-u1c*P6x-B2d-q(H1s
A. we shouldn't make any noise on the grass8H-u1c*P6x-B2d-q(H1s
B. we shouldn't walk on the grass8H-u1c*P6x-B2d-q(H1s
C. we shouldn't eat or drink on the grass8H-u1c*P6x-B2d-q(H1s
D. we shouldn't smoke on the grass8H-u1c*P6x-B2d-q(H1s