As the summer months roll in, our Georgian country estate makes the perfect setting for an outdoor fitness session. Come and work out with our qualified personal trainer, Jodie McGregor, on the grounds of the Middleton Lodge estate.

We will be holding a free taster session on 23rd May, at 10 am, to demonstrate the variety of effective and active exercises. There are eight spaces available for the taster session. Advance bookings are required (info@middletonlodge.co.uk)

老师好！

上面2021年新全国卷II阅读理解题A段落中有一个句子：

We will be holding a free taster session on 23rd May, at 10 am, to demonstrate the variety of effective and active exercises(我们将于5月23日上午10点举行免费的抢先体验课程，展示各种有效和生动活泼的锻炼方式)。

句子出现使用前面带逗号的不定式做目的状语的现象。

对前面带逗号的的不定式做句子目的状语，柯帕斯网专家老师们曾经作过分析

不定式做目的状语和逗号的关系 - 柯帕斯英语网 (cpsenglish.com)

由此，学生对句子的正确性感到疑惑，句子使用现在分词短语做方式状语是否更为合理：

即：We will be holding a free taster session on 23rd May, at 10 am, demonstrating the variety of effective and active exercises.

请教老师给与指正分析

谢谢老师！