–Kate, do you know__________it is from here to the gym.–About twenty minutes’ walk.
#41285
A
How far
B
how long
C
How soon
D
How often
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—If you have any trouble, be sure to call me. —_______. 
#39370
A
I am glad to hear that
B
I will. thank you very much.
C
I have no trouble
D
I will think it over