1 . is listening/carefully/Mary/the/teacher/to(连词成句)

2 . first/ she/prize/won/(连词成句)

3 . 专家一贯提倡每一个人都从自身做起去保护环境，使我们的星球成为更宜居的地方。
Expert always ________ that each person should play their part to protect the environment, ________ our planet a better place to live in.

4 . 社交媒体充当了一个高效率传播信息的渠道。
It is social media ________ serve as a very ________ channel for spreading information.

5 . 所有协商必须建立在平等、正直、严肃认真的基础上。
All negotiations must _______ _______ _______ equality, integrity and seriousness.

6 . Nelson Mandela, the first black president of South Africa ________ ________on Dec.5,2013.
南非首位黑人总统纳尔逊曼德拉于2013年12月5日去世。

7 . Paper-cutting has a history of over 1,500 years, which _______ ______traditional art in China.
剪纸有1500多年的历史，属于中国传统艺术。

8 . For one thing, I ________ ________ ________ ________Chinese painting, for my father is a Chinese painter.
一方面，我很熟悉中国画，因为我的父亲是一位中国人。