请阅读下列短文，从每题所给的四个选项（A、B、C、D）中，选出最佳答案，并在答题卡上将该选项的标号涂黑。
A
After my husband died suddenly from a heart attack，my world crashed around me. My six children were all under 10，and I was burdened with the responsibilities of earning a living，and caring for the children. I was fortunate to find a wonderful housekeeper to care for the children during the week，but from Friday nights to Monday mornings，the children and I were alone.
One Friday evening I came home from work to find a big pretty German Shepherd（牧羊犬）on our doorstep. This dog seemed to intend to enter the house. The children liked “German” immediately and begged me to let him in. I agreed to let him sleep in the basement. That night I slept peacefully for the first time in many weeks.
