1.You should teach your child to gather his or her toys after they are done playing.
2.Having heard that a famous professor will deliver a lecture at our school next week,we were all very excited.
3.Both sides prepared to sit down to a long discussion.
4.It is best to leave the windows open at night in the summer because that way fresh air can come in.
5.I didn't want to disappoint him so I accepted his offer to teach me English.