--- Could you please tell me if the open concert(音乐会) __________ on time?
--- It’s hard to say. If it _________ tomorrow， I’ll put it off.

A．will start; rains	B．starts; rains
C．starts; will rain	D．will start; will rain

科目 英语   题型 单选题   难度 中等

知识点： 时态辨析