阅读短文，选择正确答案。
If there is time for questions or discussion at the end of a class, take the chance to ask for further explanation
of anything that was not immediately clear. You are unlikely to be the only one who does not understand. So
our questions will help others and will encourage them to ask questions, and you should learn from all the
teacher's replies.
Questions not only help students to learn but also show interest in the subject, and this makes the teacher's
work more useful. Besides, questions should help the teacher first to recognize things that students find difficult
and then to give better lessons. More questions will come to mind during your further studies. Try to find the
answers before the next class. This will help you to learn.
1. The writer of this passage advises us _____. [ ]
A. to ask for further explanation of everything we learn
B. to ask questions at the end of a class
C. to help others by asking the teacher questions
D. to encourage the teacher to give better lessons
2. According to the passage, you ask questions in order to ____. [ ]
A. make your teacher recognize you
B. encourage your school friends to learn better
C. make yourself and your classmates learn better
D. satisfy your teacher
3. According to the passage, questions are helpful _____. [ ]
A. either to the slow students or to the bright students
B. to both the teachers and the students
C. neither to the teachers nor to the students
D. especially to some teachers