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Timothy was ten years old. He was not a very good student, and he did not like to do homework, because he preferred to do other things in his free time. Frequently he did not do his homework, and when he did it, he always made a lot of mistakes.
Then one day, his mathematics teacher looked at Timothy’s homework and saw that he had got all his sums right. He was very pleased – and rather surprised. He called Timothy 12 his desk and said to him, “You got all your homework right this time, Timothy. What happened? Did your father help you?”
Usually Timothy’s father helped him with his homework, but the evening before this day, he was away from home on business, so Timothy answered, “No, sir. He was busy last night, so I had to do it all by myself.”
(L. A. Hill. Intermediate Stories for Reproduction, 1977. Adaptado.)
Timothy did not do his homework very often, and when he did it, the homework always _________ wrong.
Considerando o sentido do primeiro parágrafo, assinale a alternativa que completa corretamente a lacuna da frase.