关于特殊句式的单选,希望能尽快讲解,谢谢!

关于特殊句式的单选,希望能尽快讲解,谢谢!
1 一Let me introduce myself. I'm Albert. 一 ______. A.It's my pleasure B.Pleased to meet you
2 _____ and the mouse was caught.AUp the cat jumped B.Up jumped the cat
3 一As a teenager, our son should have two or three hobbies to be really happy 一 ____ but how can he afford the time with so much homework every day? A. So does he B. So he should
4 To many basketball fans, nobody but kobe and lebod____the best in NBA although kevin ,together with jeremy and many other players,____also performing well.A is ;is B are ; are
5 It is reported that in New Mexico, not until they graduate____to leave high school.
A.teenagers will be allowed B.will be allowed teenagers
6.The students in the school complain that just for the sake of the National Exam,on no day and hardly at any time _____ to take a holiday. A.are they allowed B. they are allowed
英语高手快来看看!请写出解析,另一项错在哪里? 正确选项分别是：1 - 6 BBBAAA 稍微分析点每题的语法结构和主要难点
英语高手帮帮忙写出讲解 不会的就别来.求解,会解答的人都来看看啊!