Choose the sentence that you think is more appropriate to serve as a topic sentence.

A. The academic performance of some children becomes poor.
B. Caring for a pet could disrupt a child’s regular studies.

Choose the sentence that you think is more appropriate to serve as a topic sentence.

A. Worries about population pressure are far from new.
B. Worries about population pressure.

Choose the sentence that you think is more appropriate to serve as a topic sentence.

A. There are five easy steps in changing a tire.
B. Steps in changing a tire.

Choose the sentence that you think is more appropriate to serve as a topic sentence.

A. My family watched sports game and had dinner together last night.
B. My family had a good time last night.

Choose the sentence that you think is more appropriate to serve as a topic sentence.

A. Cities have traffic problems.
B. Traffic problems in cities are serious, which can be found in several ways.

Supply a topic sentence for each paragraph.1. Beaches ______________________________. Solitary people can enjoy sunbathing or reading. For social people, they can usually find someone to talk to or take a walk with at the beaches. Individuals who are very curious can collect seashells or study the habits of seashore creatures, such as sand crabs or seagulls. Active people or athletes can jog, surf, swim or play football or volleyball. In conclusion, every type of person can find enjoyment at a beach.

Supply a topic sentence for each paragraph.Beaches ______________________________. You can swim and do many other water sports in summer. You can play beach games or relax on the warm sand if you don’t like water sports. Beaches are less crowded in winter, so they are good places for solitary walks. In addition, nothing is more fun than sitting with a group of friends around a big bonfire, talking, laughing, and singing on a clear winter night. A beach, indeed, is a place to have fun all year.

Supply a topic sentence for each paragraph.Beaches ______________________________. Thailand has miles of empty beaches. The beaches there are beautiful, clean, and uncrowded, even in summer. People can spend the whole afternoon on a beach and not see many people there. However, in Japan, the beaches are very crowded. When you visit some popular Japanese beaches you can hardly find a place to sit down. The beaches in Northern Europe are different in another way. Most people go to the beach only to sunbathe because the water is cold. The beaches are rocky along the French Riviera, not sandy as they are on tropical islands. Each type of beaches — empty or crowded, sandy or rocky — has its own special characteristics to enjoy.