Look at the photographs and use the ideas to write sentences using must, mustn't or needn't

fasten seatbelt before take-off and landing

On an aeroplane, you must fasten your seatbelt before take-off and landing.

On an aeroplane

1. Take hand luggage in the flight cabin
   [ ].
2. Smoke during the flight
   [ ].

In the supermarket

1. use a basket
   [ ].
2. pay for all items at the checkout
   [ ].
3. open goods before you buy them 
   [ ].