Ответ:

1. People from my country are said to be very friendly and hospitable.

2. It's well known that smoking is bad for your health.

3. In the past, it was believed that the Earth was flat.

4. Last week in the news it was reported that there was a major earthquake in Japan.

5. Students are expected to attend all their classes and complete their homework on time.

6. Sometimes I'm known to be a bit of a perfectionist when it comes to my work.