Over the past two years, 20 staffers have left.
mustafaporno
Which of the following sentences work?
**Over** the past two years, 20 staffers **have left**.
**In** the past two years, 20 staffers **have left**.
**During** the past two years, 20 staffers **have left**.
**For** the past two years, 20 staffers **have left**.