简述设备安装时，找平的目的。
参考答案：
保持设备的稳固和平衡，避免设备变形，减少设备运转中的震动。
--- I saw your uncle take a taxi to the airport. Why didn’t you drive him there ?
--- I ___. But my car ____.
A．would ; was fixed
B．would have ; was fixed
C．would have ; was being fixed
D．did ; was being fixed
