Nam's response to Tom's invitation for a picnic

Giới thiệu: Nam's response to Tom's invitation for a picnic by the river next Sunday. Phần: ① Phần đầu tiên: Nam expresses his regret for not being able to join the picnic. ② Phần thứ hai: Nam explains the reason for his inability to join. ③ Phần thứ ba: Nam expresses his wish for good weather and a less crowded picnic. Kết luận: Nam politely declines Tom's invitation due to prior commitments and expresses his hope for good weather and a less crowded picnic.