Найдите в предложениях неличные формы глагола и назовите их: a. a) gerund; b) present participle active; с) present participle passive; d) past participle passive; e) perfect participle active; f) perfect participle passive. 1. when keyed the data are held in a small memory called buffer. 2. data keyed into the memory of a computer by typing on a keyboard are readable by humans. 3. keyboard enables inputting numerical and text data. 4. the mouse provides the cursor control simplifying user's orientation on the display. 5. having been constructed recently a new electronic device has important applications in space exploration. 6. being supplied with a special appliance a television set may have a remote control. 7. the control unit operates by reading one instruction at a time. 8. improved methods of obtaining three-dimensional television pictures have been worked on the basis of holography.

1when keyed(  past participle passive)   the data are held in a small memory called ( past participle passive)  buffer. 2. data keyed(  past participle passive   )into the memory of a computer by typing( gerund) on a keyboard are readable  by humans.3. keyboard enables inputting(gerund) numerical and text data.4. the mouse provides the cursor control simplifying (present participle active)  user's orientation on the display.5. having been constructed (  perfect participle passive)  recently a new electronic device has important applications in space exploration.6. being supplied ( present participle passive)   with a special appliance a television set may have a remote con­trol.7. the control unit operates by reading (gerund) one instruction at a time.8. improved (past participle passive)  methods of obtaining (gerund) three-dimensional television pictures have been worked on the basis of holography.

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