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1/ My favorite celebration is the Mid-Autumn Festival. It is celebrated on the 15th day of the eighth lunar month. People often camp and play games to celebrate it. Children often eat candy. It is held in Vietnam and China.

2/
1. Although it was raining heavily, the farmers kept working in the fields.
2. Even though we invited her to the meeting, she didn't come.
3. Though she came into contact with a Covid-19 infected person, she didn't keep herself in quarantine.
4. It was cold, but we went for a work.
5. He arrived late; however, he finished work earlier than the others.