Nowadays more and more people regard traveling as part of their life, and Chinese transport has been strengthened for the holiday travel  ____.

 He was so nervous during the test. No ________he didn’t pass the exam.

I haven’t seen Sara since she was a little girl, and she has changed beyond ____.

These natural disasters have warned us that everyone should start to protect the_________ immediately.

According to a UN report, a third of the world population have no ______ to clean drinking water and health care．