Safe cycling (must/ mustn`t )

You.........wear a helmet.

You .........do dangerous tricks.

You.........talk on your phone while riding.

You.........show drivers where you are going.

You........wear flip-flops.

You ....ride fast.

You.....have a light on the front of your bike.

You .....be careful near parked cars.

You ......have a bell.

You....... listen to music.

You.....check the lights.

You ......wear trainers.