Some students in class 3 didn't participate in a party  One of He Jie, Xiao Ma, Dan Dan and Xiao Zhen didn't participate, and the other three participated  When the teacher asked, they gave the following answers  He Jie: Xiao Ma didn't come  Xiao Ma: I not only attended, but also performed  Dan Dan: I came a little late, but I didn't leave until the end of the party
Jane: if Dan Dan comes, I'm not here
He Jie didn't attend.