1. She really care about my children.
    1a. She really care my children.
  2. He is a frivolous person. So don’t give any responsibility to him.
  3. The house was rented to a farmer.
    3a. The house was hired to a farmer.
    3b. The house was hired by a farmer.
  4. The cottage was let to an actor from Chennai.
    4a. The cottage was rented to an actor from Chennai.
    4b. The cottage was leased to an actor from Chennai.
    Please correct all.
  1. She really cares about my children (1a is incorrect. Use 1 as corrected.)

3a/b Houses are not hired - incorrect