9. We will put off the picnic in the park until next week, ____ the weather may be better.
根据句意,“我们”将把公园的野餐推迟到下周,那时天气可能会好一些。可知,此处是一个时间状语,选项中只有 when 可以引导时间状语从句。故正确答案为D。
“ We will put off the picnic in the park until next week, ____ the weather may be better.
”我们将把公园的野餐推迟到下周,那时天气可能会好一些。
状语从句语法结构不清楚致错。