【题目】用所给词的适当形式填空。
【1】You mustn’t__________(play) football on the road.
【2】Don’t__________ (run) or__________ (play) on the road.
【3】Liu Tao__________ the road at a zebra __________ (cross) and then goes into a bank.
【4】To cross a busy road__________ (safe), you must look at the traffic lights.
【5】We can’t__________ (find) a zebra crossing.
【6】—What must you__________ (do) on the road? —You must __________ (look) our for cars.
【7】We must__________ (wait) for the green man.
【8】We must__________ (take) good care of ourselves.