问题补充：
——Where do you think＿＿＿＿＿he＿＿＿＿the computer?
—— Sorry.I have no idea.
A. has ； bought
B. /； bought
C. did ； buy
D. had ； bought
答案：
A. has ； bought
(答案→)B. /； bought
C. did ； buy
D. had ； bought
解析：此句为复杂特殊疑问句结构，即“疑问词＋do you think (believe, suppose, expect, imagine, say, consider, guess等）＋其它（陈述语序）?
——Where do you think＿＿＿＿＿he＿＿＿＿the computer? —— Sorry.I have no idea. A. has ； boughtB. /；
