I had finished supper and _____ have a bath when the power was cut off.

A．was going to.

B．was about to.

C．was to.

D．would

（）参与对机车轴重转移进行补偿。

A.主变流器控制装臵

B.辅助变流器控制装臵

C.电源充电控制装臵