2) When we .... the office, it ....... . a) left, was raining b) were leaving, was raining c) left, rained

The correct answer is c) left, rained. Explanation: The first blank needs a verb that indicates leaving the office. "Left" is the simple past tense of "leave." The second blank describes the weather at the time, so we need "rained". The complete sentence is: "When we left the office, it rained."