1.Did they ski in the mountains last year? Yes,they did 2.Did she travel abroad last month? No,she didn’t.She traveled abroad last year. 3.Did you use a computer when you were five? No,Ididn’t. I used a computer when I was eight. 4.Did he cycle to school last Tuesday? Yes,he did.
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Ответ дал: Гость
1. a final group of utilities worth mentioning is designed (present simple passive) for backing up and cleaning up hard disks.2. a data base is (present simple) simply a collection of date that is stored(present simple passive) on one or more computers. 3. the operating system must first be loaded(present simple passive with modal verb) into primary storage.4. multitasking capabilities were once found only on minicomputers and mainframes. (past simple passive)5. utility programs monitor how often and how quickly an application program is being executed compared to all the other programs in the system at the same time. (present simple; present continuous passive)
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