a driver_a bus works very hard.HE is out_early in the morning _late at night .Sometimes he works_beautiful weather._rainy days,when it is cold and foggy, he cannot see very well where he is going.THE conductor is_a bus,too.HE has hard day going _the top_the bus and down again a hundred times a day to get passengerss" money and give tickets_them. of/from/in /to/of/on/till/on/up/