This is Jim. He is thirteen. He is from the USA. He is a student. He has a good friend. His name is Jack. Jack is fifteen. He is from Canada. Jack is tall but Jim is short. They are in the same class, but they are in different grades. Jim is in Class Two. Jack is in Class Two, too. They go to school(上学) at seven in the morning and go home(回家) at six in the afternoon.
根据短文内容，选择正确答案。
Jim and Jack are ____.

A．sisters	B．friend
C．teacher and student	D．from different countries(国家)

Jim is ____.

A．short

B．tall

C．strong

D．big

Jim and Jack are in ____.

A．the same grade	B．different grades
C．the same color	D．the same family

Jack is in ____.

A．Class 4

B．Class 3

C．Class 2

D．Class 1

They go to school at ____ in the morning.

A．6:00

B．7:00

C．7:30

D．8:00