I don't know whether you happen_____ but I'm going to study

I don't know whether you happen_____ but I'm going to study don't know whether you happen_____,but i am going to study i I don't know whether you happen （ ）,but I’m going to study i I don't know whether you happen----,but I am going to study I don't know whether you happen to have heard,but I'm going I don’t know whether you happen _______,but I’m going to stu I don’t know whether you happen _____,but I am going to stud What are you going to study next year?--I don,t know,but it, i dont know whether you happen ___m,but i am going to study I don't know whether you like ...I'm sorry don’t know whether I really love you,but I know I cannot los i don't know whether you happened to have heard or i don't k