【正文】 Look at our office assistant. He is very hardworking.5. Look at Nicola. She is very pretty.6. Michael Baker and Jeremy Short are employees. They are sales reps.B1. 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 policemen. 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.Lesson 20 P40A1. 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.B1. 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’ 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.Lesson 22 P44A1. Is this Nicola’s coat? No, it’s not. Her coat is grey.2. Are there 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.B1. Give me a cup please. Which one? This dirty 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.Lesson 24 P48A1. Give Jane this watch. Give her this one, too.2. Give the children these ice creams. Give them these, too.3. Give Tom this book, Give him this one, too.4. That is my passport. Give me my passport please.5. That is my coat. Give me my coat please.6. Those are our umbrellas. Give us our umbrellas please.B1. Give me some pens please. Which ones? These? No, not those. The ones on the desk.2. Give me some ties please. Which ones? These? No, not those. The one on the chair.3. Give me some spoons please. Which ones? These? No, not those. The ones on the table.4. Give me some plates please. Which ones? These? No, not those. The ones on the cupboard.5. Give me some cigarettes please. Which ones? These? No, not those. The ones on the television.6. Give me some boxes please. Which ones? These? No, not those. The ones on the floor.7. Give me some bottles please. Which ones? These? No, not those. The ones on the dressing table.8. Give me some books please. Which ones? These? No, not those. The ones on the shelf.9. Give me some magazines please. Which ones? These? No, not those. The one on the bed.10. Give me some newspapers please. Which ones? These? No, not those. The ones on the stereo.Lesson 26 P52A 1. Give me a glass. Which glass? The empty one.2. Give me some cups. Which cups? The cups on the table.3. Is there a book on the table? Yes, there is. Is the book red?4. Is there a knife in that box? Yes, there is. Is the knife sharp?B1. There’s a cup on the table. The cup is clean.2. There’s a box on the floor. The box is large.3. There’s a glass in the cupboard. The glass is empty.4. There’s a knife on the plate. The knife is sharp.5. There’s a fork on the tin. The fork is dirty.6. There’s a bottle in the refrigerator. The bottle is full.7. There’s a pencil on the desk. The pencil is blunt.Lesson 28 P56A1. There are some pencils on the desk.2. There are some knives near that tin.3. There are some policemen in the kitchen.4. There are some newspapers in the living room.5. There are some keyboards operators in the office.B1. Are there any books in the room?No, there aren’t any books in the room.There are some magazines.Where are they?They’re on the television.2. Are there any ties on the floor?No, there aren’t any ties on the floor.There are some shoes.Where are they?They’re near the bed.3. Are there any glasses on the cupboard?No, there aren’t any glasses on the cupboard.There are some bottles.Where are they?They’re near those tins.4. Are there any newspapers on the shelf?No, there aren’t any newspapers on the shelf.There are