-When did your computer go wrong? -Last night, while I_______ some music from a website.
#38149
A
downloaded
B
am downloading
C
was downloading
D
have downloaded
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We        in the same school for three years.
#42044
A
were studying
B
have studied
C
will study
D
study
 _________ he ________ many good friends?
#42571
A
Does , have
B
Do , have
C
Does , has
D
Are, have
What_____you_____at nine yesterday morning?
#41735
A
have, done
B
did, do
C
were, doing
D
do, do