He entered the Aviatoin Institute last year
He didn't enter the Aviatoin Institute last year
When did he enter the Aviatoin Institute?
Where did he enter last year?
What did he do last year?
My sister studies at the university
My sister doesn't study at the university
Where does my sister study?
Who studies at the university?
What does my sister do at the university?
The third-year students will have industrial training next summer
The third-year students will not have industrial training next summer
Who will have industrial training next summer?
When will the third-year students have industrial training next summer?
What will the third-year students have next summer?
What training will the third-year students have next summer