- ［名词性从句］if, whether引导的名词从句 (0篇回复)
- ［倒装］倒装句之部分倒装 (0篇回复)
- ［虚拟语气］wish的用法 (0篇回复)
- ［名词性从句］引导名词性从句的连接词 (0篇回复)
- ［定语从句］as, which 非限定性定语从句 (0篇回复)
- ［虚拟语气］混合条件句 (0篇回复)
- ［状语从句］目的状语从句 (0篇回复)
- ［虚拟语气］比较if only与only if (0篇回复)
- ［情态动词］ should 和ought to (0篇回复)
- ［情态动词］带to 的情态动词 (0篇回复)
- ［情态动词］比较need和dare (0篇回复)
- ［情态动词］had better表示"最好" (0篇回复)
- ［连词］表原因关系 (0篇回复)
- ［情态动词］would rather表示"宁愿" (0篇回复)
- ［状语从句］比较while, when, as (0篇回复)
- ［情态动词］表示推测的用法 (0篇回复)
- ［虚拟语气］特殊的虚拟语气词should (0篇回复)
- ［虚拟语气］It is （high） time that (0篇回复)
- ［状语从句］结果状语从句 (0篇回复)
- ［状语从句］比较until和till (0篇回复)