—______ do you usually go to bed? —At six.
#55702
A
What time
B
How time
C
When
D
A and C
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It’s widely known that you won’t achieve success _____ you work hard.
#55267
A
unless
B
whether
C
if
D
until
After school he didn’t go home . _______ he went to the Internet café (网吧)..
#58321
A
But
B
While
C
Instead
D
Instead of
My father was preparing for his speech __ my mother was doing some washing last night.
#58386
A
if
B
while
C
unless
D
until