(
orange,go, yellow, in , on, rulers, a, an, road, rules, boat, three, there, is,
green , stop, )
You must know the traffic ______ if you
walk ____ a city. There ___always _____ lights for the traffic lights. You can
cross the street at a ______ light and you must ____ at a red light. The _____ light means “Wait’ .
If you drive ___ car, you must drive ___ the right side of the _____.