1. It is common knowledge that honesty is the best policy. 2. It is well-known that… 3. It is self-evident/ conceivable / obvious / apparent that… 4. It goes without sayi...
首段:I am so happy to learn that you are going to (hold a birthday party next Sunday).Thank you very much for your invitation to the activity. 中间段:But, unfortunately, I’m sorry to say that I couldn’t attend (the birthday party).Because…What a...
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