There are lots of things you could talk about here. Try to sit down and make a plan based around the following ideas:
Cars have an environmental impact, they are extremely damaging due to the fumes that they give off. This can have subsequent effects on nature and humans alike.
Cars cost taxpayers money because of the need to renew and build roads. If less cars use the roads then one can presume there would less damage to repair and indeed less roads required for society as a whole.
Cars can cause health problems if people breathe in noxious exhaust fumes. Thousands of people die every year due to air pollution. Cars and traffic have a massive impact on the air that we breathe every day.
Cars can be very dangerous and cause deaths every year. Car accidents account for a large number of fatalities around the world. Limiting car use would presumably lead to less deaths and less injuries to humans everywhere.
"I finished my research paper two days early."
A good way to determine active vs passive is to ask who performed the action. Did the subject perform the action, or was the action performed "by" the subject?
The subject performs the action in this sentence:
I = [subject]
finished = [action]
my research paper = [thing on which the action was performed]
In the other examples, the subject has an action performed on it.
My research paper = [subject]
was finished/is being finished = [action]
two days early = [time frame information, not really important for the discussion here]
At this point, you have no indication as to who will finish the paper, do you? No. You assume that the paper will be completed "by me," but it could just as easily be completed "by my friend."
If you can add "by [person/thing]" to a sentence, it's passive voice. If you can't, it's not. Clearly, you would never say "I finished my research paper by me."
Answer: you need to add a picture
Explanation:
