阅读理解。

    This is Jim. He is thirteen. He is from the U.S.A. He has a good friend. His name is Jack. Jack is fifteen.

He is from Cuba. Jack is tall but Jim is short. They are in the same grade, but they are in different classes.

Jim is in Class Two. Jack is in Class Four. They go to school (上学) at seven in the morning and go home

(回家) at six in the afternoon.

1.Jim and Jack are           . [ ]

A.friend

B.teacher and student

C.from different countries (国家)

2.Jim and Jack are in           . [ ]

A.the same grade

B.the same class

C.the same family

3.They go to school at            in the morning. [ ]

A.7:00

B.7:30

C.8:00

4.翻译文中加下划线的句子。

5.把文中加下划线的句子正确抄写在下面横线上。

下列说法错误的是（ ）。

A． 窗体文件的扩展名为．frm

B． 一个窗体对应一个窗体文件

C． Visual Basic中的一个工程只包含一个窗体

D． Visual Basic中一个工程最多可以包含255个窗体