根据中文意思完成句子，每空一词。

1. 我妹妹的老师鼓励她做一个歌手。

    My sister was _____ to be a singer _____ her teacher.  

2. 要想保持身体健康，就要有规律地训练。

     _____ you want to be healthy, you should train _____.

3. 我认为请他演广告是不好的。

    I _____ think it's good to ask him to appear in _____.

4. 你能告诉我WTO代表什么吗?

    Can you tell me what WTO _____ _____?

5. 确保要记录下周那场艰难的比赛。

    Make sure you _____ that _____ match next week.