How much are these socks课件6

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What’s the matter课件4

I’ve had this bike for three years课件2

Where did you g o on vacation课件1

Have you read Treasure Island yet课件6

I’ve had this bike for three years课件5

I’m going to study computer课件2

Will people have robots课件3

Have you read Treasure Island yet课件3

I’m going to study computer science课件1

I’m going to study computer课件5

How much are these socks课件4

Have you read Treasure Island yet课件4

When was he born课件1

When was he born课件4

I’m going to study computer课件3

I’ve had this bike for three years课件4

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What’s the matter课件1

What’s the matter课件3

What’s the highest mountain in the world课件14

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I’m going to study computer science课件3

How much are these socks课件7

What’s the matter课件7

I’m going to study computer课件4

I’m going to study computer science课件2

Where did you g o on vacation课件3