题目内容：

COLUMBIA, S.C. (AP) — A group of black parents and civil rights activists presented a petition（请愿书） Thursday calling for officials to drop charges against a 16-year-old South Carolina high school student who was videotaped being dragged from her desk and thrown to the floor by a police officer in her classroom.

The group said it was unfair and unacceptable that the student and her 18-year-old classmate at Spring Valley High School who taped the incident were the only people charged that day when authorities already knew Richland County Deputy Ben Fields had tossed the girl from her desk to the ground.

They also said their petition had hundreds of thousands of names from around the country asking prosecutor Dan Johnson to drop the "disturbing schools" charges against the teens. The students in the case are black; Fields is white.

Johnson issued a statement Wednesday saying he won't do anything with the case until the FBI finishes its investigation into Fields, who was fired after the video became public. "I do not simply decide cases based upon feelings, public opinion or sentiment, nor do I decide them based on political pressure," Johnson said in the statement.

Disturbing schools is punishable by a fine of up to $1,000 or 90 days in jail. The students' lawyer did not respond to telephone messages.

The video spread quickly across the country, prompting questions about when police officers should get involved with classroom discipline. Fields was called to the classroom after the student refused to stop using her cellphone, and then she would not leave the classroom for a teacher or administrator.

In the days after the incident, the teacher turned her class over to a substitute and the administrator was placed on leave. Richland two officials didn't respond to an email asking about their current status. The students were allowed back in school.

Organizers of the protest said they plan to be at South Carolina's Statehouse next year, calling for legislators to change the law that allows police officers to arrest students for misbehaving at schools. Richland County Sheriff Leon Lott blamed that law for escalating the situation. "Let's find a way where we don't saddle students with arrest records," said EfiaNwangaza from the Malcom X Center for Self Determination. "Let's get ahead of the schoolhouse-to-jailhouse train in South Carolina."

1.What are the teens charged with?

A. Playing cellphones in class

B. Disobeying the teacher

C. Disturbing schools

D. Fighting with the police officer

2.What is Don Johnson's attitude towards the case?

A. Indifferent   B. Ambiguous

C. Subjective    D. Cautious

3.According to the passage, people are now concerned about the following except_____.

A. whether the incident reflects a racial issue

B. when police officers should get involved with classroom discipline

C. whether students can play cellphones in class

D. whether the law that allows police officers to arrest students for misbehaving at schools should be changed

4. Which of the following could be the best title for the passage?

A. Police officer fired for tossing student

B. Black parents protest charge for teen tossed from desk

C. Charged teens allowed back in school

D. Violence at school