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    新概念英語(yǔ)第一冊(cè)Lesson17~18課后答案
    A
    1 That man is tall. He is a policeman.
    2 Those girls are busy. They are keyboard operators.
    3 Our names are Britt and Inge. We are Swedish.
    4 Look at our office assistant. He is very hard-working.
    5 Look at Nicola. She is very pretty.
    6 Michael Baker and Jeremy Short are employees. They are sales reps.
    B
    1 Are they keyboard operators or air hostesses?
    They aren't keyboard operators. They're air hostesses.
    2 Are they postmen or policemen?
    They aren't postmen. They're policemen.
    3 Are they policewomen or nurses?
    They aren't policewomen. They're nurses.
    4 Are they customs officers or hairdressers?
    They aren't customs officers. They're hairdressers.
    5 Are they hairdressers or teachers?
    They aren't hairdressers. They're teachers.
    6 Are they engineers or taxi drivers?
    They aren't engineers. They're taxi drivers.
    7 Are they policewomen or keyboard operators?
    They aren't policewomen. They're keyboard operators.
    8 Are they milkmen or engineers?
    They aren't milkmen. They're engineers.
    9 Are they policemen or milkmen?
    They aren't policemen. They're milkmen.
    10 Are they nurses or housewives?
    They aren't nurses. They're housewives.
    新概念英語(yǔ)第一冊(cè)Lesson19~20課后答案
    A
    1 Those children are tired.
    2 Their mother is tired, too.
    3 That ice cream man is very busy.
    4 His ice creams are very nice.
    5 What's the matter, children? We are thirsty.
    6 What's the matter, Tim? I am tired.
    B
    1 Are the children tired or thirsty? They're not tired. They're thirsty.
    2 Are the postmen cold or hot? They're not cold. They're hot.
    3 Are the hairdressers thin or fat? They're not thin. They're fat.
    4 Are the shoes small or big? They're not small. They're big.
    5 Are the shops shut or open? They're not shut. They're open.
    6 Are his cases heavy or light? They're not heavy. They're light.
    7 Are grandmother and grandfather young or old? They're not young. They're old.
    8 Are their hats old or new? They're not old. They're new.
    9 Are the policemen short or tall? They're not short. They're tall.
    10 Are his trousers short or long? They're not short. They're long.
    新概念英語(yǔ)第一冊(cè)Lesson21~22課后答案
    A
    1 Is this Nicola's coat? No, it's not. Her coat is grey.
    2 Are these your pens? No, they're not. My pens are blue.
    3 Is this Mr. Jackson's hat? No, it's not. His hat is black.
    4 Are these the children's books? No, they're not. Their books are red.
    5 Is this Helen's dog? No, it's not. Her dog is brown and white.
    6 Is this your father's tie? No, it's not. His tie is orange.
    B
    1 Give me a cup please. Which one? This ditty one? No, not this dirty one. That clean one. Here you are. Thank you.
    2 Give me a glass please. Which one? This empty one? No, not this empty one. That full one. Here you are. Thank you.
    3 Give me a bottle please. Which one? This large one? No, not this large one. That small one. Here you are. Thank you.
    4 Give me a box please. Which one? This big one? No, not this big one. That little one. Here you are. Thank you.
    5 Give me a tin please. Which one? This new one? No, not this new one. That old one. Here you are. Thank you.
    6 Give me a knife please. Which one? This sharp one? No, not this sharp one. That blunt one. Here you are. Thank you.
    7 Give me a spoon please. Which one? This new one? No, not this new one. That old one. Here you are. Thank you.
    8 Give me a fork please. Which one? This large one? No, not this large one. That small one. Here you are. Thank you.