1£®They want to make it clear to the public that they do an important and necessary job.

2£®Do remember to watch out for cars while crossing the street.

3£®What makes me puzzled (puzzle) is why he left the country without telling anyone.

4£®We live in a global (globe) village, but this doesn't mean that we all behave in the same way.

5£®The biologist (biology) thinks that some plants in this area are in danger of extinction.

6£®Most children need encouragement in the face of failure so that they can cheer up again.

7£®We decided to cut down the tree in front of the window because it blocked out the sunlight.

8£®It rained heavily in the south, causing (cause) serious floods in several provinces.

9£®Hearing the exciting news, he was too excited to_say (say) a word.

10£®The boy often breaks in while his parents are speaking.