- 8.3 remember doing/to do (0篇回复)
- 8.2 forget doing/to do (0篇回复)
- 8.1 stop doing/to do (0篇回复)
- 7.15 动名词与不定式 (0篇回复)
- 7.14 不定式的时态和语态 (0篇回复)
- 7.13 不定式的特殊句型Why not (0篇回复)
- 7.12 不定式的特殊句型so as to (0篇回复)
- 7.11 不定式的特殊句型too…to… (0篇回复)
- 7.10 动词不定式的否定式 (0篇回复)
- 7.9 省to 的动词不定式 (0篇回复)
- 7.8 用作介词的to (0篇回复)
- 7.7 不定式作状语 (0篇回复)
- 7.6 不定式作定语 (0篇回复)
- 7.5 不定式作表语 (0篇回复)
- 7.4 It's for sb.和 It's of sb. (0篇回复)
- 7.3 不定式主语 (0篇回复)
- 7.2 不定式作补语 (0篇回复)
- 7.1 不定式作宾语 (0篇回复)
- 6.2 worth 的用法 (0篇回复)
- 6.1 动名词作主语、宾语和表语 (0篇回复)