根据中文意思完成下列句句。

1. 吸烟会让他的病情加重，除非他立即戒烟。

    Smoking will make his illness worse ________.

2. 叫他们按时上交作业，不要再上网了。

   Tell them ________ their homework on time and not to surf the Internet ________.

3. 多好的消息啊！所有驾驶员5月1号起不允许酒后驾驶了。

    ________ news! All drivers are ________ to drive after drinking from May 1.

4. 在考试中关注细节，我们取得好成绩并非难事。

    It's not difficult for us ________ in the test ________ paying attention to the details.

5. 中国在世界的政治、经济舞台上正扮演着越来越重要的角色。

   Now China —________ on the world's political and economic stage.