last summer vacation, I interned at

last summer vacation, I interned at (ชื่อบริษัท), a leading media agency in Thailand where I had
a chance to practise writing advertising copies and learned how to work as professional in the field.

ผลลัพธ์ (อังกฤษ) 1:

Last summer vacation, I interned at (company name), a leading media agency in Thailand where I had.a chance to practise writing advertising copies and learned how to work as professional in the field.

ผลลัพธ์ (อังกฤษ) 2:

last summer vacation, I interned at (company name), a Leading Media Agency in Thailand where I had
a Chance to practice Writing Advertising copies and learned How to Work as Professional in the field.