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Lesson 20 Look at them,Look at that boys shoes.Are they dirty?No,they arent dirty.Theyre clean.,those postmen,Look at Are they?No,they arent.Theyre.,those shoes,Look at Are they?No,they arent.Theyre.,those shops,Look at Are they?No,they arent.Theyre.,those cases,Look at Are they?No,they arent.Theyre.,grandmother and grandfather,Look at Are they?No,they arent.Theyre.,those hairdressers,those hats,those policemen,those trousers,
