About "Compound sentences", "Complex sentences" and "Compound-complex sentences" I know there are three sentence structures in English , I try to write some sentences by using them, please help me modify them if having error and tell me the reason, thank you very much. and God bless you.^^ ★ Compound sentences：coordination clauses＋coordination clauses ˙You're right, Juliet, but I would just like to know if I've got the job. ˙The emergency hotline is free, but we can't call this numbers at random. ˙The sunshine is warming, and the wind is soft. ˙He is not only my opponent, but also my best friend. ˙I want to go to see the movie on my birthday, but my girlfriend thinks that is too expensive. ˙I will finish housework by myself, or my mother will be mad at me. ˙Both using cell phone and playing computer for a long time is bad for health. ★ Complex sentences：main clauses＋subordinate clauses ˙We were sorry to hear that Michael has passed away. ˙Mrs. Devlin wants to show us that sitting on exercise balls can ˙keep a healthy sitting posture. ˙Did you know that fun times always pass by quickly? ˙I felt hungry and thirsty after running for a long distance. ˙He went to National Nature Science Museum when he was in Taichung. ˙She got a good grade on the exam, although she didn’t study very hard. ★ Compound-complex sentences：Compound sentences＋subordinate clauses ˙You can start work on November 12, and we need to know when we can prepare a training program. ˙I realized that I was in Korea for I walked on the street with thousands of Koreans. ˙You should blind date with the man who works in a restaurant, and we will come with you. ˙I know this topic is easy to write, but I still don’t know how to answer. ˙He went to school, but his brother remained at home because he had a sore throat. ˙If he changes his mind, we shall know for sure that Joe has learned his lesson, but only time will tell. Please help me modify these sentences if it have error and tell me the reason, thank you very much. ^^