一道题（句型转换）they often went to the park once a monththey ——— ——- go to the park once a month
问题描述：
一道题（句型转换）
they often went to the park once a month
they ——— ——- go to the park once a month
答
一个snow 用形容词 第二句 用snow 的动词问题补充：为什么 一个snow 用这里是be动词后用形容词，it在这里代指天气， 明天将是下雪的(天气) 比如
答
2V2
你怕吗
来吗
答
they often went to the park once a month
they—— ——— go to the park once a month
填used to（我是最早的,选我哦!）