问题
选择题
--- Why does she leave a key to you?
--- _______, I think.
A．In convenience
B．For convenience
C．With convenience
D．At convenience
答案
答案：B
题目分析：考查情景交际。句意：--她为什么给你留下一把钥匙？--为了方便，我认为。for convenience为了方便起见。故选B。