mine favorite mode of transportation, describe and detail

24 in 30

You have issues on examples. You may remove those examples since what you talked before are examples too.

Try this pattern:

first 1-2 sentences: introduction. my opinion: A or B. agree or disagree. about 5-10 seconds
First, reason 1 (one sentence) and why reason 1(2-3 sentences): about 15 seconds
Second, reason 2(one sentence) and why reason 2(2-3 sentences) : about 15 seconds
Third, reason 3 (optional)
Conclusion: one sentence.(optional)

Look at the pattern, you don't need to put extra examples after 'why reason 1' or 'why reason 2'

When you listen users like:
http://www.testbig.com/users/vanan
http://www.testbig.com/users/lauren

you will figure out that they don't put 'why reason 1' or 'why reason 2', but directly put examples. that's ok too.