—Are train services now back to ______after last week's snowstorm?
—Yes,they are.
A.ordinaryB.normalC.commonD.average
—Are train services now back to ______after last week's snowstorm?
—Yes,they are.
A.ordinaryB.normalC.commonD.average
B
此题考查形容词辨析。be back to normal=return to normal“恢复正常”,固定搭配。