⑴No littering!{#blank#}1{#/blank#}                             A.

⑵No spitting!{#blank#}2{#/blank#}                              B.

⑶Don't waste food!{#blank#}3{#/blank#}                        C.

⑷Keep quiet!{#blank#}4{#/blank#}                             D.

⑸Watch your step!{#blank#}5{#/blank#}                        E.

⑴ {#blank#}1{#/blank#}                 A. behind

⑵ {#blank#}2{#/blank#}                    B. on

⑶ {#blank#}3{#/blank#}                  C. under

A. B. C.

D. E.

— Great!

— This is the head. Here you are.

— Thanks.