几道初中英语题!急!

几道初中英语题!急!
1.Do you know _____ a report on English learning tomorrow morning?
A.is there B.there is going to have C.will there be D.there is going to be
2.You can't imagine _____ when the pupils received these nice presents on Children's Day?
A.how they were excited B.how excited they were C.how excited were they D.they were how excited
3.----You never told us why you were late for the meeting,_____?
----_____.I think it is not necessary to explain.
A.weren't you;No B.did you;No C.did you;Yes D.didn't you;No
4.There is no important information in the newspaper,_____?
A.isn't there B.is it C.is there
5.----Sorry for being late again.
----_____ here on time next time,or you'll be punished.
A.Be B.Being C.To be D.Been
这一题的B和C有什么区别?我觉得这两个都可以选啊.
每一题都求答案求讲解,越详细越好,在线等,谢谢大家!