Final answer:
Mrs. Sholter sent Bonnie to borrow a phone from another neighbor when Mrs. Watson wasn't home.
Step-by-step explanation:
Mrs. Sholter sent Bonnie to the neighbors to make a phone call when she wanted to keep the phone lines free. Since Mrs. Watson wasn't home, Bonnie borrowed the phone of another neighbor.
Bonnie borrowed the phone of Mrs. Jenkins, the other neighbor, when Mrs. Watson wasn't home.
When Mrs. Sholter sent Bonnie to the neighbors to make a phone call and Mrs. Watson wasn't available, Bonnie borrowed the phone from another neighbor, Mrs. Jenkins, to make the call.