有人问这样一道选择题:
(1)He thought of the photo that_________many years ago.
A. was taken B. had taken C. took D. had been taken
我认为选A 比选D好，因为从句中有过去时间 many years ago, 不知对否？
对，应选A。在有表过去某一时间的状语时，一般皆可用过去一般时表“过去的过去”，再如：
(2)John said he was born in 1990.
(3)He told me he saw Mary the day before.
其实，在不会引起误会的条件下，也可用过去一般时表“过去的过去”，如：
(4)Did you find the pen you lost ?
(5)I came after you left .
选D 也不错，但它强调过去动作完成的先后关系。
