A.Please | B.Don’t | C.Can |
A.Open your mouth. |
B.Open your books. |
A.Don’t walk. | B.No bikes | C.No parking. |
A.Don’t walk. | B.Don’t hit other children. | C.No smoking. |
A.Don’t make noise. | B.No smoking. | C.Don’t walk. |
A.No cameras. | B.Don’t touch. | C.Touch it. |
A.they aren’t; They are | B.it isn’t; It’s | C.they are; They are |