____I was walking to school, I saw a boy crying in the street.
#57531
A
Until
B
While
C
Before
D
After
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__________he is ill, __________he goes to school.
#56079
A
Although, but
B
/, /
C
Although, /
D
But, although
–_______________ does a CRH train run? –It runs up to more than 300 km an hour.
#56034
A
How long
B
How far
C
How fast
D
How soon