—Where do you think _____ he _____ the computer?—Sorry,I have no idea. 
#104219
A
had;bought
B
has;bought
C
did;buy
D
/;bought
推荐题目
The construction of the two new railway lines   by now.
#99633
A
have been completed
B
has been completed
C
has coompleted
D
have completed
I am so tired,for I ________ English for 2 hours.
#99761
A
is studying 
B
have been studying
C
was studying 
D
had been studying