Question

【题目】I don't know if it __________ tomorrow. If it ___________, we will go out for a picnic.
A.will rain; won't rain
B.rains; doesn't rain
C.rains; won't rain
D.will rain; doesn't rain

Answer 1

【答案】D
【解析】句意：我不知道是否明天会下雨。如果不下雨, 我们将出去野餐。if连词有两种用法：一、引导宾语从句，意思是"是否"；二、引导条件状语从句，意思是"如果"，时态要注意"主将从现"的原则。所以选D。