_____is the population of Shanghai? 
#41167
A
What
B
How much
C
How many
D
How
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Can you tell me ________ the problem of stress?
#40761
A
what I should deal with
B
how I should do with
C
what to deal with
D
how to deal with
_____ have you been swimming? For five years.
#41171
A
How many times
B
How long
C
How often
D
How much