Looking on the internet deeply has found these results:

happened during summer vacation is the most popular phrase on the web.

happened in summer vacation 10 results on the web	happened during summer vacation 124 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Jul 27, 2015 ... This happened during summer vacation so there were few students on the playground and none were killed by the crash, but the accident is ... “Because it happened during summer vacation, it was easy for that scenario in my mind to work out,” she says. “But, I have a group of friends—I think my mom ... May 18, 2009 ... Pepsi Natural reminds me of naked hippies. Why? Sit down and I will tell you. It happened during summer vacation after my sophomore year in ... Tell about something that happened during summer vacation. Write 125 words or more about your summer. Save your work. Friendly Letter Graphic Organizer.

happened in summer vacation

10 results on the web

happened during summer vacation

124 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Jul 27, 2015 ... This happened during summer vacation so there were few students on the playground and none were killed by the crash, but the accident is ...
“Because it happened during summer vacation, it was easy for that scenario in my mind to work out,” she says. “But, I have a group of friends—I think my mom ...
May 18, 2009 ... Pepsi Natural reminds me of naked hippies. Why? Sit down and I will tell you. It happened during summer vacation after my sophomore year in ...
Tell about something that happened during summer vacation. Write 125 words or more about your summer. Save your work. Friendly Letter Graphic Organizer.