A mother and her young 【son】 got 【on】 a bus and sat down.The bus conductor came to their 【place】for ther tickets.The mother said,"I want one ticket to London," and 【gave】 her two pounds.
The conductor looked 【at】 the small boy for a moment and said to him,"How old are you "
The mother began speaking,and the conductor stopped her,and the boy said,"I'm four years old 【at home】,and two and a half【on】 buses and trains."
The mother took one pound out 【of】her bag and gave 【to】the conductor.She gave her one and a half 【tickets】.