Bait

  1. She used cheese as/for bait in mousetraps.
  2. She used cheese to bait in mousetraps.
  3. She baited the mousetraps with a piece of cheese.
  4. She used cheese to bait the traps.
    Please correct them all and comment.
    Thanks.
  1. She used cheese as/for bait in mousetraps. OK
  2. She used cheese to bait [her] mousetraps.
  3. She baited the mousetraps with a piece[s ] of cheese. {or “She baited each mousetrap with a piece of cheese.”}
  4. She used cheese to bait the traps. OK