---You haven’t said one word about the design Joe. What’s your idea? ---Sorry. Iabout som

问题补充：

---You haven’t said one word about the design, Joe. What’s your idea?

---Sorry. Iabout 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：本题考查时态。根据语境可知，我那个时候正在思考其它事情，故用过去进行时。句意：——Joe，你关于这个设计没有说一个字，你的想法是什么？——对不起，我正思考其它事情。