Question

I don't know if he ________. He will come if it ________.

[　　]

A．comes. won't rain

B．will come, doesn't rain

C．comes, doesn't rain

D．will come, won't rain

Answer 1

答案：B
解析：

根据英语动词时态的呼应规律，第一句中主句为一般现在时，宾语从句表示将来的动作要用一般将来时；第二句中主句是将来时，条件状语从句要表示将来的动作要用一般现在时代替一般将来时．