Which sentence contains an error in the use of end marks or commas?

Question

A.Miss K.C. Fairchild will lead the band in a Sousa march.
B. Mom, what does B.C. mean?
C.Dr. and Mrs. Majeck will attend the party on March,12,2007.
D. Address inquiries to Ella Adams, 315 Elm St., St. Petersburg, FL 33707
My answer for this Q is B plz check ^^;

Answer 1

Nope.

Answer 2

... end marks or commas?

No, B is correctly done.

Answer 3

Oh yeah, I forgot to add another Q ^^;
A.Walker, an expert on radar, will be here for about 90 minutes.
B.After his tour of duty ends he intends to work for Science Pathways Corp.
C.I met him last summer in Pensacola, and we have kept in touch by writing letters.
D.Lt.Walker will be coming on Thursday to tell us how radar works.
My answer for this Q is B as well :)

Answer 4

B is right for your last question.

Answer 5

I have a feeling its D for the first Q ^^;

Answer 6

"have a feeling" ??? Why aren't you studying?

http://grammar.ccc.commnet.edu/grammar/commas.htm
Go through the different comma uses here. Study them.

No guessing, no feeling ... learn these things!

Answer 7

what I meant that I had a feeling that it was a D because on 315 Elm St it shows that it has a period and then a comma wouldn't that be incorrect?

Answer 8

No. "St." is an abbreviation for "Street" and has a period. The period here indicates an abbreviation, not the end of a sentence.

Answer 9

oh sorry ^^;