根据图画和句意填单词。

1. -What’s this in ______________?

    -It’s a _________________.

    -How can you ______________ it?

    -B-A-C-K-P-A-C-K.

2. I like watching ____________ games.

3. I don’t know the word. I need an English d         .   

4. Please write them down in you n          .

5. A __________ can tell（告诉）us the time（时间）.

6. -Is this your _________ _________?

    -Yes, it is. Thank you.

7. This is the __________ to the door（门）. Let’s go in.

以下哪项不是良性肿瘤的特征

A．一般生长较慢

B．细胞分化好，细胞形态和结构与正常细胞相似

C．多呈浸润性生长

D．一般对机体无影响

E．一般不发生转移