—__________ do I have to change the robot’s batteries? —Every two months.
#41136
A
How long
B
How soon
C
How often
D
How many
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Which________you rather_________,tea or coffee?
#41124
A
would;to drink
B
would;like
C
would;liking
D
would;drink
______ can cause high blood pressure and hearing problems.
#41189
A
Air pollution
B
Water pollution
C
Light pollution
D
Noise pollution
–__________ will the meeting last?  –Less than an hour.
#40993
A
How far
B
How soon
C
How long
D
How often