5. The pollution is getting worse. We need to take action   (protect) our earth.

4. I think students should give their seats to the   (elder) on a bus.

3. Helen and Lucy keep in touch by   (write) emails.

2. Listen   (care) when you are in class.

1.   (travel) helps us learn much about different cultures.

5. (2015 •鹽城)he players in the Chinese men's soccer team are paying more attention to their  (日常的) training.

4. There is an apple tree in the  (西南方) of our new school.

3. They are talking about an animal  (課題) .

2. It s (有意義的) to work as a volunteer at a community centre.

1. The government should help the local people   (改善) their living conditions.