L4-1: Advanced Writing L4-1: Advanced Writing L4-1: Advanced Writing Level 4 Lessons Lesson 4-1: 天亮了、天黑了 L4-1: Advanced Writing Back to All Levels Topic MaterialsDownload the printable to practice writing the following words: 黑手、太陽能、太陽花.Download the printable to practice writing the following words: 黑手、太阳能、太阳花.Writing Worksheet: Download Writing Worksheet: Download Previous Topic Back to Lesson Next Lesson