1.After he was asked what had happened,he told us about it.
2 Because he was well known for his expert advice,he received many invitations to give lectures.
3 If we were given more time,we would be able to do the work much better.
4 Once the book had been translated into Chinese,it became very popular among Chinese teenagers.
5 Since she was deeply interested in medicine,she decided to become a doctor.
6 Although Sam was left alone at home,he did not feel afraid at all.