用所给词的适当形式填空

1. He wasn't allowed ____ (go) swimming after school.    

2. ____ (with) your help, I can't get more information.    

3. Traveling by plane is ____ (many) comfortable than traveling by train.    

4. I like Yi Zhongtian because he is a _____ (knowledge) teacher.    

5. You can't take anything from here without_____ (permit).

与洋葱表皮细胞相比，人体细胞结构中没有（）。

A.细胞壁、细胞质、细胞核

B.细胞壁和液泡

C.细胞膜、细胞质、细胞核

D.细胞质和液泡