⑴What must we do before lunch? {#blank#}1{#/blank#}         A. We mustn't smoke.

⑵What mustn't we do in the forest? {#blank#}2{#/blank#}     B. No, you needn't.

⑶Must I finish the work now? {#blank#}3{#/blank#}               C. No, you can't.

⑷What do you need for making tea? {#blank#}4{#/blank#}    D. Some boiled water and tea.

⑸Can I throw the stone in the river? {#blank#}5{#/blank#}      E. We must wash hands.

—           

A: Hi, John. {#blank#}1{#/blank#}

B: Very well, thank you.

A: Look! Who's that boy?

B: {#blank#}2{#/blank#}

A: {#blank#}3{#/blank#}

B: Yes, she is.

A: Who's that man?

B: {#blank#}4{#/blank#}

A: Is he your father?

B: {#blank#}5{#/blank#} He's my teacher.