—Whose dog is this?—It's my dog.

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—Where are you going? 
—Bookstore. I'm going to buy a new {#blank#}1{#/blank#}   {#blank#}2{#/blank#}.

Miss Fang: Hello, children. This is Mr. Xu. He's a fireman. Let's welcome Mr. Xu.

Mr. Xu: Thanks. Let's talk about {#blank#}1{#/blank#}safety today. Fire can burn down trees. It can {#blank#}2{#/blank#}people, too. We must be {#blank#}3{#/blank#}with fire. What mustn't we do in the forest or at home, children?

Peter: We mustn't {#blank#}4{#/blank#}in the forest.

Kitty: We mustn't play near fires or play with {#blank#}5{#/blank#}at home.

Mr. Xu: Very good. Safety first.

—It's her key.