先阅读短文，然后根据首字母提示补充单词。

     Look at the child over there. 1. H______ name is Jim Green. He is an English 2.b______. He is

my 3.g______ friend. 4. M______ name is Liu Ying. This 5.i______ our school. It's No.2 Middle

6.S______.My father is an 7. E______ teacher in the school. Jim is eleven.  I'm twelve. He is in

8. C______ Two. We are 9. i______  the same class. We like our school 10.  v______ much.

“神舟六号”飞船顺利升空后，聂海胜在轨道舱中摘下自己的航天表，让表在空中自由漂浮翻滚。关于这块航天表的质量下列说法中正确的是[ ]

A．在加速升空时质量变大

B．在空中自由漂浮翻滚时质量最小

C．回到地球上时质量变大

D．质量不变