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--- ________ do you stay at home at weekends?

--- Ten hours.

A．How often         B．What time         C．How long          D．When

--- ________ do you stay at home at weekends?

--- Ten hours.

　 A. How often　 B.What time　 C. How long　 D.When

Do you know how to study better and make your study more effective(有效)? We all know that Chinese students usually study very hard for a long 35. This is very good, but it doesn't 36 a lot. An effective student must have enough sleep, enough food, enough rest and exercise. You need to go out for a walk or visit some friends or some nice places. It's good for your study.
When you return  37  your studies, your mind will be refreshed(清醒的) and you'll learn more  38  study better. Psychologists（心理學家）39  that learning takes place in this way. Here take English learning  40  an example. In the first few months you can make progress and you feel happy. Then your language study seems 41  on the same level. So you will think you're learning  42  and you may give up. This can last for days or even weeks, yet you needn't give up. At some point your language study will take another big  43  again. You'll see that you really have been learning all along. If you get enough sleep, food, rest and exercise, studying English can be very effective and interesting. Don't  44  along the way. Learn slowly and you're sure to get a good result.

Do you know how to study better and make your study more effective(有效的)？We all know that Chinese students usually study very hard for long  35   .This is very good, but it doesn’t       36   a lot, for an effective student must have enough sleep, enough rest and exercise. Every day you need to go out for a walk or visit some friends or some nice places. It’s good for your study.
When you return   37   your studies, your mind will be refreshed(清醒) and you’ll learn more  38  study better. Psychologists(心理學家)  39  that learning takes place in this way. Here take English learning    40   an example. In the first few months you can make a lot of progress and you feel happy. Then your language study seems   41   the same. So you will think you’re learning  42  and you may give up. This can last for days or even weeks, yet you needn’t give up. At some point your language study will take another big  43  . You’ll see that you really have been learning all along. If you get enough sleep, food, rest and exercise, studying English can be very effective and interesting. Don’t  44  along the way. Learn slowly and you’re sure to get a good result.