“________ do you exercise?” “Three  times a week. ” 
#40818
A
How long
B
How often
C
How far
D
How many
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-- I don’t know ______ with this problem. It’s too hard. --- You can ask Mr Wang for help.
#41104
A
which to deal
B
when to deal
C
what to deal
D
how to deal
I didn’t  know ______ to London.
#40777
A
how to go
B
where to go
C
what to go
D
how go
_____ she got a dictionary?
#40927
A
Does
B
Has
C
Have
D
Do
—When  are  you  leaving?—I'm  leaving_______.
#41071
A
in next week
B
last week
C
on the 12th
D
in Sunday morning