_______ the boy was walking down the street, the UFO landed.
#55622
A
While
B
After
C
Before
D
until
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-- does your sister practice singing English songs? ----Twice a week.
#56345
A
How soon
B
How long
C
How far
D
How often
_______ the boy was walking down the street, the UFO landed.
-- does your sister practice singing English songs? ----Twice a week.