IV. Complete the sentences with the words given train ticket traffic jam speed limit zebra crossing road users railway station driving license means of transport safety helmet road safety 11. _______________________ is a hard hat which covers and protects the whole head, worn especially by motorcyclist. 12. Slow down a bit. There’s a 50 km __________________________________ on this road 13. The camel is the most common ______________________________ in the desert of Egypt and some other countries. 14. Avoid the rush hour and you won’t get stuck in a ______________________________________. 15. This morning a lorry broke down near the ___________________________________.