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I’ve had this bike for three years课件5

Have you read Treasure Island yet课件6

I’m going to study computer课件5

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What’s the highest mountain in the world课件14

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When was he born课件1

When was he born课件2

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I’m going to study computer science课件1

How much are these socks课件7

I’ve had this bike for three years课件3

Where did you g o on vacation课件3

How much are these socks课件4

I’m going to study computer science课件2

What’s the matter课件1

I’m going to study computer课件6

What’s the highest mountain in the world课件16

When was he born课件3

Will people have robots课件3

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What’s the highest mountain in the world课件15