1.Individually, complete the sentences about the right way to manage trash using can, can't, may, may not, must, and must not.
a) People (can/can't) recycle plastic botHles.
b) You_(must/must not) burn old batteries.
c) We (may/may not) throw away metal cans on the streets.
d) Broken glass botles (can/can't) go in the trash can.
e)People from your community (may/may not) put clean cardboard boxes in the recycling bin.
f) Food waste (can/can't) be turned into compost.
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- Before checking the answers with your teacher; compare your answers with a classmate.
Grammar
Modal Verbs of Prohibition and Permission
| Use | Example |
| Can | To express that something is allowed or possible. | We can recycle plastic botHles. |
| Can't | To express that something is not allowed or that is impossible. | You can'f leave your trash on the floon |
| May not | To express prohibition or that you don't have permission to do something. | We may nof leave the classroom without permission. |
| Must not | To express a strict prohibition or a rule that is important to follow. | You must not put battenies in the regular trash. |


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