EX: put the following into the passive voice.
  1.We can never find him at home for he is always on the move
  2.they use milk for making butter and cheese
  3.science ang technology have completely changed human life
  4.jonh used to visit my cole at weekends
  5.weeds cover the river bank
  6.smoke filled the room
  7.how long have they waited for the doctor ?
  8.what time can the boys hand in their papers ?
  9.they have given the women in most countries in the world the right to vote
  10.they paid me a lot of money to do the jod
mn giúp mk với ạ .camon mn