- [特殊词精讲]try doing/to do (0篇回复)
- [动词不定式]不定式的时态和语态 (0篇回复)
- [动名词]动名词作主语、宾语和表语 (0篇回复)
- [动词不定式]不定式的特殊句型too…to… (0篇回复)
- [特殊词精讲]remember doing/to do (0篇回复)
- [特殊词精讲]go on doing/to do (0篇回复)
- [冠词和数词]冠词与形容词+名词结构 (0篇回复)
- [代词]并列人称代词的排列顺序 (0篇回复)
- [动词的时态] used to / be used to (0篇回复)
- [动词的时态]用现在进行时表示将来 (0篇回复)
- [独立主格]独立主格 (0篇回复)
- [动词不定式]动词不定式的否定式 (0篇回复)
- [独立主格]with的复合结构作独立主格 (0篇回复)
- [分词]分词 (0篇回复)
- [动词不定式]用作介词的to (0篇回复)
- [动词不定式]动名词与不定式 (0篇回复)
- [动词不定式]省去to 的动词不定式 (0篇回复)
- [动词不定式]不定式的特殊句型so as to (0篇回复)
- [分词]分词的语态 (0篇回复)
- [动名词]短语动词 (0篇回复)