Questions Can't be Answered

mom : lebaran ngga kesini mbak?
me : .....

co : kemaren bukannya pulang ya nis??
me : ......

ce : kamu pasti ikut kan nis??
me: eerr gtw
ce : lah koq gtw, kamu kan ....
me : ...... 

those questions above are something that i can't answer... not because i dont know the answer but i dont know how to say it...