Has someone fixed the coffee machine yet?改成被动

Has someone fixed the coffee machine yet?改成被动 fixed After the 13th death,14th is Has not 求英语语法解释Jinan's post authority is seeking a ping-pong professional,arousing doubt that the job has been fixed in favor of someone.英语语法书上不是说肯定句加doubt引导词用whether if ,但这句是肯定句,引导词却用 she always runs with someone who has When someone says he has a p_____memory -Did Peter fix the computer himself?-He _______ ,because he doesn't know much about computers.A.has it fixed B.had fixed itC.had it fixed D.fixed it [-C18] -Did Peter fix the computer.-He ______ ,because he doesn't know much about computers.A.has it fixed B.had fixed itC.had it fixed D.fixed it为什么选C不选B? Did Peter fix the computer himself?-He _______ ,because he doesn't know much about computers.A.has it fixed B.had fixed itC.had it fixed D.fixed it为什么后面可以用does啊 不是过去时吗? Did Peter fix the computer himself?-He _______ ,because he doesn't know much about computers.A.has it fixed B.had fixed itC.had it fixed D.fixed it选C为什么不选A All night,Cory,Tracy’ s mother,stood next to her son,who was lying in a hospital bed,his brown eyes fixed in a lifeless stare.She remembered that Tracy has once mentioned organ donation.Maybe I can spare another family this pain,she thought.When th 英语翻译2011World University GamesThe 26th World University Games,also named as the Little Olympic Games,will be hold in Shenzhen on August 23,2011.The emblem '' the happy U '' which has no fixed meaning is very open in that people can imagine it someone has broken into the house句子中的 has 英语翻译A good traveler has no fixed plans,and is not intent on arriving.-- Lao Tsu someone stole my watch.someone has stolen my watch.someone stole my watch.someone has stolen my watch.2句意思有何分别? 要说出为什么All my attention____on the magazine I was reading,so even did not notice my father enter the room.A.fixed B.was fixing C.was fixed D.has been fixed someone 英语翻译Sometimes someone has to walk out of your life,for someone better to walk in.