I Need Some Grammer Help?

Question

Below is the text that needs commas. Where do I put the commas?


This important bipartisan signing ceremony took place at the White House 1600 Pennsylvania Avenue Washington D.C. in the presence of congressional leaders of both parties.

Answer 1

You also need some spelling help ("grammar").

This important bipartisan signing ceremony took place at the White House, 1600 Pennsylvania Avenue, Washington, D.C., in the presence of . . . .

If you didn't use commas, you could put the whole White House address within dashes or parentheses to get the same effect. In that case you would only add the commas within the address.

Answer 2

This is my opinion:
This important bipartisan signing ceremony took place at the White House, 1600 Pennsylvania Avenue, Washington D.C., in the presence of congressional leaders of both parties.

Warning: I'm not native English speaker ~.~

Answer 3

This important bipartisan signing ceremony took place at the White House 1600 Pennsylvania Avenue Washington D.C. , in the presence of congressional leaders of both parties.

after Washington DC you have to put a comma.

grammar reference:
http://owl.english.purdue.edu/handouts/grammar/g_comma.html

it's used to separate an enumeration (in this case - the words giving details for the adress) of the rest of sentence

Answer 4

Put the commas after House, Washington and C.and Avenue