Last Saturday our town held a small science fair in the school hall. Dana built a wind turbine, and her brother Arman showed a water filter. Visitors asked many questions. One man wondered how the filter worked. Arman explained that sand and charcoal remove dirt from the water. 'Look at the clear water!' he said. 'It is amazing, isn't it?' said a woman. Because the judges were impressed, they gave him a special prize. Dana, who had worked on her turbine for a month, won second place. Nobody was disappointed, for everyone had learned something new.
Choose the correct word order to complete the indirect question: 'The woman asked Arman ___.'
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Верный ответ
- Dhow the filter works
Разбор
In an indirect question the word order is the same as in a statement: question word, subject, verb. This gives 'how the filter works', with no auxiliary 'does' and no inversion. The text shows the same pattern in 'wondered how the filter worked'. The other options keep question word order or break the order completely.