Question

I       lunch when I learned that former British prime minister Margaret Thatcher had passed away.

1. A.
   ate
2. B.
   had eaten
3. C.
   was eating
4. D.
   were eating

Answer 1

C
试题分析：表示过去某一时间正在进行的动作，用过去进行时，故选C。
考点：时态的考查
点评：通过时间状语，上下句意思和具体语境来确定时态。