Use must, needn't, mustn't. Look at the signs and complete the sentences.
1. You ... drive faster than 50 k.p.h. here.
2. The children ... go to shool on Monday.
3. In Armenia you ... drive on the left.
4. You ... cross the street here.
5. Everybody ... drive carefully here.
6. All cars ... turn left here.
7. It's ten past five. You ... wait long for a train to Surbiton.
8. You ... smoke here.