题目

American students spend 72 minutes on physical activity per day,      1. ________ and that in South Korea 42 minutes. However, Chinese students    2. ________ have only 12 minutes for physically activities per day. The reasons         3. ________ lie in the following. Almost all the time are spent on lessons in            4. ________ Chinese schools and students are made by parents concentrate         5. ________ on their study even whether they get back home. So there is               6. ________ little time leave for their physical activities. In my opinion,          7. ________ both schools and parents should allows students                   8. ________ more time to do physical activities. After all, knowledge                    9. ________ can be gain not only from books but also through activities.       10. ________ 答案：【答案】1. activity→activities         2. that→those           3. physically→physical 4. are→is                   5. concentrate前加to      6. whether→when 7. leave→left     8. allows→allow         9. √ 10. gain→gained

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