A. it's not a good manner in public places. B. It's also very dangerous.

     C. Let me take a photo for you.              D. I think he is taking photos.   

E. It's the longest wall in the world. F. I want to take better photos.

Mary：Wow, look at the Great Wall. It's really great.

Tracy：Yes, {#blank#}1{#/blank#}

Mary：Oh, look at that man over there. What is he doing?

Tracy：{#blank#}2{#/blank#}But he is climbing up on a tree.

Mary：That's a bad manner. {#blank#}3{#/blank#}

Tracy：Yes, we should tell him not to climb up on that tree. Let's go.

Mary：Excuse me, sir.

Man：Yes?

Tracy：What are you doing up there?

Man：{#blank#}4{#/blank#}.

Tracy：But it's not safe to climb up on the tree and {#blank#}5{#/blank#}.

Man：Right, thank you very much. I shouldn't do that{#blank#}6{#/blank#}.

Mary and Tracy：OK. Smile!

Mary: Hello, Bob.

Bob: Hello, Mary.

Mary: I have a new{#blank#}1{#/blank#}

Bob: What {#blank#}2{#/blank#}is it?

Mary: It's black {#blank#}3{#/blank#}white.

Bob: It's beautiful.

Mary: Thank you.

Bob: What's {#blank#}4{#/blank#}it?

Mary: An {#blank#}5{#/blank#}book, a maths book, two notebooks, some pencils and three keys.

Bob: It's so heavy!

Chen Jie: Hello, Amy! I have a new schoolbag.

Amy: {#blank#}1{#/blank#}

Chen Jie: It's blue.

Amy: {#blank#}2{#/blank#}

Chen Jie: It's on the chair.

Amy:  {#blank#}3{#/blank#}

Chen Jie: Two pens, a ruler and many books.

Amy:  {#blank#}4{#/blank#}

Chen Jie: Sure. Here you are.