I did not know a______/a_______ at the party

I did not know a______/a_______ at the party I do not know a______ to the q______ . i am sorry i can not go to the party. i am a_______ meeting Did mary come to the party I do not know .she_wh i do not know what to say (say) at the party 为什么添to say the challenging friend I did not know As ________,he did not show up at the party. I believe that they did not know the fact at all. I didn't know a____/a____ at the party.快答快答 I am a_______ my parents are not at home. how much does the coat cost(i did not know) I did not like the man.Do you know?