Когда Давид приехал в школу, там ни

Когда Давид приехал в школу, там никого не было:были каникулы - и мальчики уехали домой.

Results (English) 1:

When David arrived at the school, there's no one there: there were the holidays-and the boys left home.

Results (English) 2:

When David came to the school, no one was there: was a vacation - and the boys left home.

Results (English) 3:

When David went to school, there was no:were holidays - and boys gone home.