REWRITE SENTENCE
1:Because of the rough sea,the ferry couldn't sail.
2:We drove slowly for him to follow us.
3:They set off early in order to reach the village before night.
4:We left early in order not to miss the train.
5:Since they hadn't met our sister before,I intrduced her to them.
6:Because it rained,we couldn't go out.
7:She left the party quickly in order not to say goodbye.