As the weather was fine, we decided to climb the mountain. • 2. My sister was expecting me, so I had to go now. • 3. A body in motion remains in motion at a constant speed in a straight line unless acted upon by an external force. • 4. We knew spring was coming as we had seen a robin. 5. If you have never tasted the bitterness of gall, how can you know the sweetness of honey?