题目内容：

阅读下面的短文，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Regular exercise and a healthy diet can be potentially beneficial to your life. But could speaking more than one language have healthy benefits for your brain? A team at Baycrest’s Rotman Research Institute in Canada1.(seek) the answer to that question. 2. (get) it, they studied the medical records of 211 people. Based on medical examinations, all of the subjects were apparently suffering from Alzheimer’s disease (老年前期痴呆). Typically, such people are 3. (confuse) easily about times and dates, have trouble 4. (remember) recently acquired information, and find 5. difficult to solve problems and make plans. Among the people participating in the Canadian study, about half spoke two languages and the other half only one.

6. the researchers found was a clear link between the bilingualism (双语能力) of the first group and a delayed onset (开始) of the symptoms of Alzheimer’s. In the study, the group that spoke two languages showed 7. (sign) of Alzheimer’s five years later than the group that spoke only one language did.

People who 8. (regular) communicate in two languages have stronger control of language 9. are able to keep their speech ability longer. The Canadian study followed earlier work that was conducted in 2007. That research showed that 10. (be) bilingual improves attention and cognitive control in both children and adults.