{#blank#}1{#/blank#}

① We have a new friend today. {#blank#}1{#/blank#}     A. 小心，留神。

② Watch out. {#blank#}2{#/blank#}     B. 今天，我们有一个新朋友。

③ Welcome back to school. {#blank#}3{#/blank#}     C. 欢迎返回学校。

({#blank#}1{#/blank#})1. Good morning，Liu Tao.

({#blank#}2{#/blank#})2. Goodbye, Miss Li.

({#blank#}3{#/blank#})3. Good afternoon, Wang Bing.

({#blank#}4{#/blank#})4. Hello, Mike.

({#blank#}5{#/blank#})5. Hello, I'm Li Lei.

a．Hi, I'm Mike.

b. Good afternoon, Jiang Ling.

c. Good morning, Helen.

d. Goodbye, class.

e. No, I'm Sam.

f. Hello, I'm Bobby.

g. Hello, Sam.