American students spend 72 minutes on physical activity per day, 1. and that in

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. ________

试题答案

【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