---_______does your mother watch the Talk show? ---Once a week.
#56342
A
How long
B
How often
C
How soon
D
How many
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This problem is ______ difficult __________.
#57835
A
so; that few of us can do
B
so; that few of us can do it
C
too; for anyone of us to do
D
too; for anyone of us to do it
The old man is _______ please keep quiet. 
#57362
A
sleep, and
B
asleep, so
C
sleepy, but
D
sleeping, but