Передать в active voice a heavy box is being carried by the wjrkers. the classes are being attendedbu students allthe term. the exams werebeing passedby him at the end of the term. exams arepassed by many students everyyear. the guestions will beasked butheteacriast thursdey.

The workers are carrying a heavy box.
The students are attending the classes all the term.
He was passing the exams at the end of the term.
Many students pass exams every year.
The teacher will ask guestions next Thursday.