Complete the sentences based on the grammar section.

Here are the completed sentences: * 1 You must stop when the traffic light is red. * 2 It's quicker if you take the tunnel through the mountain. * 3 Always check the road before stepping off the pavement. * 4 You can cross the street at the zebra crossing. * 5 Pay attention to the road sign so that you don't get lost. * 6 You have to cross the bridge to get over the river. * 7 Cars are not allowed to drive in the bus lane. * 8 Drivers should be careful of trains when going over a level crossing.