六、Reading Comprehension 閱讀理解（20 分，每題 2 分）： Read the paragraph. Then answer the questions.  1.Dave: Am I driving too fast? Joan: No, but always watch the road! Dave: OK. I need to stop at the red light, right? Joan: Yes, and keep a distance between our car and the car in front. Don’t get too close. I don’twant anything to happen. Dave: Fine. Where do I go next? Joan: Turn right in 100 meters. Dave: All right. Should I turn right here? Joan: Yes. Now you just have to go straight. We can get to Grandma’s house in ten minutes. Dave: What does that sign say? Joan: Which one? Dave: That one with some water falling on a car. Joan: Those are little rocks, not water. There may be rocks coming down from the mountains.Be careful.
【題組】36. Why should they keep a distance?
(A) To stay safe.
(B) To save more money.
(C) To move quickly on the road.
(D) To say hi to another driver.