1. The robber took out the dagger, and threatened to kill her.

2. It was cloudy, so they took their umbrellas with them.

3. As I was tired, I could walk no further.

4. As the book had not been read for a long time, it became dusty.

5.If we speak generally, the climate of Korea is ideal.

6. Having breakfasted as usual, I fell to my work.

7. Taken by surprise, he gave up the contest.