Look at the following topic sentences. Choose the best topic sentence and explain why the other sentence is weak. Write the numbers for the explanation according to the ideas below

[1]    There are around 1 billion cars in the world today.
[2]    Cars have dangerous gases that contaminate the air.
[3]    Cars are expensive.
[4]    Driving cars is convenient but it’s too time-consuming.
[5]    My city has many problems.
[6]    My city is famous for its beautiful landscapes.
[7]    People often visit my city in March because we have a festival at that time.
[8]    Many people love studying English and they also love French.
[9]    A large number of students study English for their future jobs.
[10]    Studying English is popular.
[11]    My teacher is young and funny.
[12]    There are many young teachers in my school.
[13]    Young teachers are often have dynamic and energetic teaching styles.