Easy Word | Luyện ngữ pháp


Luyện ngữ pháp English Grammar in Use (Unit 42: Passive 1)


Write questions using the passive. Some are present and some are past.
  1. Ask about glass. (how / make?)  ?
  2. Ask about television. (when / invent?)  ?
  3. Ask about mountains. (how / form?)  ?
  4. Ask about antibiotics. (when / discover?)  ?
  5. Ask about silver. (what / use for?)  ?
Exercises - 42.1 Exercises - 42.3


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