小學(xué)六年級(jí)英語課文 lesson 5 just read and speak

　　look out!You mustnt cross the road now.

　　You must wait for the green light.

　　You mustnt spit on the ground. You must keep off the grass.

　　You mustnt pick the flowers.

　　You mustnt litter .We must take good car -e of young children.