问题补充:
--- Where do you think he the computer?
--- Sorry. I have no idea.
A. has; bought
B. 不填; bought
C. did; buy
D. 不填; buys
答案:
A. has; bought
(答案→)B. 不填; bought
C. did; buy
D. 不填; buys
解析:Where do you think he...?为双重疑问句,故第一空不填;第二空为过去发生的动作,故用一般过去时态。