例句
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When is the art show?
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It's on Friday.
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When is Sports Day?
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It's on April 5th.
练习
- 填空：It's ___ Monday.
- 写 2 组问答（活动 + 日期/星期）。
参考答案
- on
- 示例略（句型正确即可）。
日常表达
When is the art show? It's on ...
会用 When is the ...? 询问活动日期，并用 It's on + 日期/星期 回答，能在句子里正确使用 on。
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闯关进度
完成学习后点亮本关
每完成一个知识点会累计 3 颗星星，进度只保存在当前浏览器里。
学完后再点击，更有通关仪式感。
上一关
Did you ...? Yes, I did. / No, I didn't.
学会用 Did you...? 询问过去是否做过某事，并用 Yes, I did / No, I didn't 回答。
下一关
When is your birthday? It's in ...
会用 When is your birthday? 询问生日月份，并用 It's in + 月份 回答，能进行简单对话。