Traffic jam is one of the biggest problems in cities. (a) The causes of traffic jam are many. (Negative) There are many vehicles running in the streets. (b) The drivers do not obey traffic rules. (Affirmative) (c) Overtaking tendency also causes traffic jam. (Interrogative) (d) The govt. should construct spacious roads. (Passive voice) (e) We all must work together to reduce traffic jams. (Imperative)