Anyone or someone?

[vv0510_vn]

I wonder if I can use both 'everyone' and 'someone' in this context.
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Filling the blanks:
a) I am looking for_____ who can help me to solve this math problem.
A. anyone
B. someone

b) If _____ calls, take their names and phone numbers.
A. anyone
B. someone
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Any help would be appreciated.

 

[2006]

I wonder if I can use both 'everyone' and 'someone' in this context.
==================================
Filling the blanks:
a) I am looking for_____ who can help me to solve this math problem.
A. anyone
B. someone
You can use either one but I think that "someone" would be more commonly used.

b) If _____ calls, take their names and phone numbers.
A. anyone B. someone
Again, you can use either one but I think "anyone" is definitely more natural/common.

It's possible there are regional variations.
Any help would be appreciated.

2006

 

[vv0510_vn]

Thanks!
But if in a multichoice-test, which answer would be right? I mean which one is better?

 

[2006]

Thanks!
But if in a multichoice-test, which answer would be right? I mean which one is better?

a) someone
b) anyone