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Ex. 39 1)      Mary had a party yesterday evening. 2)      Your mother left a message for you twenty minutes ago. 3)      We bought a new carpet last week. 4)      He met her at the theatre the day before yesterday. 5)      They went to Australia last year. 6)      We didn’t stay at a hotel last year. 7)      He didn’t go to the dentist’s last year. 8)      My friend bought a new car last month. 9)      Billy repaired his bicycle last week.Ex. 40 1. Did Mike stay at a hotel last summer?2. Didn’t you understand the exercise yesterday?3. Where did Alice buy a beautiful red dress?4. Why didn’t you play the piano yesterday?5. Who went to the market yesterday afternoon?6. Why didn’t his brother take his dog for a walk yesterday evening? 7.Who taught them last year?