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3.I have been skating     five hours.

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2.I have been skating     nine o′clock.

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1.I am talking     you      the Hilltop School Skating Marathon. Here,students are skating to     money     charity.     every hour they skate,each student raises ten yuan for charity.The     marathon has been going    five hours now,     several skaters are still skating.

以下几题请用since和for填空

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3.  他从九点开始滑冰到现在。

                                    

 

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3.你第一双滑冰鞋什么时候买的?

                                         

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2.  你已经收集贝壳多长时间了?

                                    

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1.  我今天已经在教室呆了好几个小时了。

                                    

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6.-How long      you         ‹collect›shells?

-   For 2 years.

Unit 6

Exercises 2

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5.-How long        you        ‹learn›English?

  -I         ‹learn›it for 5 years.

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4.-How long     you        ‹skate›?

  -I         ‹skate›since I     ‹be›seven years old.

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