Walt: use speech marks and other punctuation marks correctly
Tim looked long and hard at all the ice-blocks and finally said, “I'd like a lemonade ice-block please”. “Here's your ice-block, That will be one dollar and fifty cents,” said the shopkeeper. Tim put his money on the counter and headed out the door calling, “Thanks very much,” as he went.
“Come back,” called the shopkeeper. “There's fifty cents change”.“In that case,” said Tim, walking back to the counter, “I'll have a packet of chewing gum as well,” “There you go”. “I hope you enjoy it”, said the shopkeeper. “I will,” said Tim.