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Dear Liu,

I trust this email finds you in good health. I want to express my gratitude for your kind invitation.

Currently, attending classes in person or in a blended format is a challenge for me. Therefore, I kindly request your assistance in arranging an online class for me, if possible.

I eagerly await your response.

Thank you once again for your understanding and support.

Best Regards,

Jian

I hope this email finds you well. Thank you very much for your invitation.

It's inconvenient for me to attend the class in person or blended currently.

Would you please help me arrange an online class?

Looking forward to you reply.

Thanks again.