Create a dialogue. Act out the dialogue by doing a video/audio presentation.
你是小李。今天是周末，但经理有事情要让你去一下办公室。办公室钥匙经理以前给你了，但现在你没找到。所以，你给同事小楚打电话，问他有没有钥匙。小楚说他有钥匙，他家离你家不远，而且他现在要到你家外面的商店买东西，所以，他打算给你送钥匙。你告诉小楚，你不知道你今天要在办公室工作多久，所以钥匙可能星期一还(huán ▸ to return; to give back)他。
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1. Recommended service that allows embedding:
For videos and audios: YouTube.com (for audios please cover the camera or film your writing/typing instead of yourself while you read)
For images: imgur.com (please post direct url of the image - the format would be https://xxxx.jpg)
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