A. trouble B. difficulty C. advice
All the thought of his parents’ words, Bill said to the old man, "Let’s go to the (44) "
When they got there, Bill asked the waiter to bring out bread and coffee to the old man. The old man finished the meal quickly. After the waiter (45) the plate and the cup, the old man said, "Sorry for giving you too much (46) . I’m fine now. I’ll (47) forget your kindness! You are a very good young man.
Bill was (48) when he heard this. Just when he wanted to pay for the meal, the waiter came, Bill and the old man learned (49) that the food was free (50) it was the birthday of the boss, and they were the first customer(顾客) that day.
