Read the following paragraph and underline the topic sentences.
If your objective is to sore a goal, you must knock the ball. The ball may not go where you aim because of a missed kick or an interception by an opponent. But if you continue to run after the ball, then the ball will eventually get nearer to your target. You may need more training or the help of team members to score a goal.
【正确答案】：If your objective is to sore a goal, you must knock the ball.
【题目解析】：p143
