题目内容：

新概念英语介词题,
填入适当的介词
1.I couldn"t believe_____________my eyes.
2.When his brother came to stay with him last night,he turned the sofa_______a comfortable bed
3.Because______________the heavy rain he took an umbrella with him.
4.He put an ugly stone head_________________the gate.
5.She went back___________home without saying goodbye to us.