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1.Mary has done the washing up
2.The secretary has мейд phone calls
3.Jerry has done his homework
4.My grandmother has made the table 
5.The boys have taken the dog for a walk
6.I have washed my cat
7.Mr Brown has bought a new computer
8.Granny has sold my old toys
9.Mum has told me the news
10.I read the book about Africa last mohth
11. He wrote the book when he was seventy