姐姐身高1.61米，比妈妈矮0.09米，妈妈身高 [ ]
A．1.52米
B．1.70米
C．1.68米
答案：B
The key you have just got ____ the front door.
A．is used to opening
B．is used to be opened
C．is used to being opened
D．is used to open
人际沟通
