I.
1. He opened the lion's cage to feed the lion./Tp feed the lion, he opened the lion's cage
2. He left his ride outside not to frighten his wife./Not to frighten his wife, he left his ride outside.
3. I took off my shoes not to make any noise./Not to make noise, I took off my shoes.
4. I sent him out of the room not to hear my conversation with Mary./Not to hear my conversation with Mary, I sent him out of the room.
5. He learned English well to his mother felt happy/To his mother felt happy, he learned English well.
II.
1. Put the cork back because someone may knock the bottle over.
2. They talked in whispers so that I can't overhear them.
3. Airplanes carry parachutes so that the crew can escape in case of fire.
4. I am insuring of my life because I want my children to have something to live on if I am killed.
5. Please shut the gate because I don't want the cows to get out of the field.
Study well.
@stubapid.alex