A.of | B.off | C.on |
A.Don’t stand up! | B.No littering! | C.No spitting! |
A.wastes | B.wasting | C.waste |
A.Does | B.May | C.How |
A.Good morning. | B.Good afternoon. | C.Goodbye. |
A.Keep quiet! |
B.Watch your step! |
C.No spitting! |
D.No littering! |
E.Don't waste food! |
A.Good morning | B.Good afternoon! |
C.Good! |