What do you think of my suggestion?- I’m sorry. Er… I about something else.A. thou

问题补充：

--- What do you think of my suggestion?

--- I’m sorry. Er… I about something else.

A. thought

B. am thinking

C. was thinking

D. had thought

答案：

A. thought

B. am thinking

(答案→)C. was thinking

D. had thought

解析：考查时态。句意：你认为我的建议怎么样？抱歉。我在想别的事。根据句意可知提建议是刚刚发生的事，要用过去时，而且我在想别的事，是说刚才提建议时我正在想，要用过去进行时。选C。