—_____do you improve your listening? —I improve it ______ listening to tapes.
#50028
A
How; with
B
What; with
C
How; by
D
What; by
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We can get fresh water from rain, from rivers, or from ________ the ground.
#50757
A
across
B
under
C
over
D
off
---________do you spend _English learning every day? ---For about an hour.
#50368
A
How long, in
B
How many times, on
C
How often, on
D
How long, on
