阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Many young people wants 【小题1】 (become) great athletes. They exercise and lift weights in the gym. But the fact is that they don’t become stronger, 【小题2】 makes them unhappy.

Therefore, some of them are considering 【小题3】 (take) pills, which they think will help them become 【小题4】 (strong) than before. However, the truth is that these pills usually have some unintended side 【小题5】 (effect). Some of them may even affect 【小题6】 (they) liver or heart. 【小题7】 fact, some great athletes such as Griffith Joyner, died very young because they 【小题8】 (take) some pills.

For the above reasons, I suggest that young people be 【小题9】 (care) not to take pills. 【小题10】 best way to become stronger is going to a gym to work out.