Question

we will go to the park to have a picnic it rains

We’ll go to the park to have s picnic ____ it rains. A. if B. unless C. besides D whether

Answer 1

B 考查状语从句。if，如果；unless, 如果，除非；besides，除了….之外还有；whether，是否。根据句意：如果明天不下雨，我们就去公园野餐。所以答案为B。