人教版九年级全一册 Unit 4 I used to be afraid of the dark. Unit 4 I used to be afraid of the dark.
Unit 4 I used to be afraid of the dark. 第一课时:围绕「Unit 4 Review: used to」,学习核心词汇与重点句型,通过对话、听力与配对活动理解并运用本课内容。