One day a teacher was giving her young students a lesson on how the government works. She was trying to explain the principle(原理) of income tax（所得税）.“You see,” she began, speaking slowly and carefully, “Each person who works must pay part of his or her salary( 薪水) to the government. If you make a high salary, your taxes are high. If you don’t make much money, your taxes are low.”“Is that clear?” she asked. “Does everyone understand the meaning of income tax?”. All the students nodded.“Are there any questions? ”sheasked. All the students shook their heads.“Very good!”she said. “Now, I would like you to take a piece of paper and write a short composition on the subject of income tax.”
Little Joey was a slow learner. He had lots of problems with spelling and grammar, but this time he at least seemed to understand the task. He took his pen and after a few minutes, he handed the teacher the following composition: Once I had a dog. His name was Tax. I opened the door and in come Tax.
One day the teacher was trying to explain_________.

A．that everyone should pay income tax

B．how the government was formed

C．the basic principle of income tax

D．how much tax one should pay for his or her income

After the teacher’s explanation,_________.

A．each student seemed to understand the meaning of income tax

B．many of the students were still puzzled

C．all the students understood the meaning of income tax

D．all the students shook their heads

The students were asked to ________.

A．say something about income tax

B．answer some questions about income tax

C．write a composition on income tax

D．explain the principle of income tax

Little Joey____________.

A．was clear about the subject

B．understood what income tax meant

C．understood the teacher’s meaning

D．wrote a short composition about his dog

From the passage we know_______.

A．Joey’s composition was close to the topic

B．“income tax” and “in come Tax” sounds alike

C．little Joey was very clever

D．“income tax” share the same meaning with “in come Tax”