Select the correct active form of the given sentence. My birthday was celebrated by my colleagues at the office today. (a) My colleagues have celebrated my birthday at the office today. (b) My colleagues are celebrating my birthday at the office today. (c) My colleagues will celebrate my birthday at the office today (d) My colleagues celebrated my birthday at the office today.

Options

A. My colleagues have celebrated my birthday at the office today.
B. My colleagues are celebrating my birthday at the office today.
C. My colleagues will celebrate my birthday at the office today
D. My colleagues celebrated my birthday at the office today.

Explanation

(d) My colleagues celebrated my birthday at the office today. (Correct)(a) My colleagues have celebrated my birthday at the office today. (Tense has changed)(b) My colleagues are celebrating my birthday at the office today. (Tense has changed) (c) My colleagues will celebrate my birthday at the office today. (Tense has changed)