根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
An old song says that “Love makes the world go around”._________36 The whole country breaks out with little red hearts. Love-struck people give cards, flowers and candy to their sweethearts.
The American concept of love and romance begins with dating. Young people date in several ways. At first they might have group dates with several boys and girls together._________ 37
When two couples go out together, it’s called double dating. A friend might even arrange a blind date for you with someone you don’t know.__________ 38 You just don’t know who your partner will be until the time of the date. American young people see a date as a time just to have fun. They don’t always have a romantic interest in mind. Someone may go out with one person this week, and another the next. After a while, a boy and a girl may decide they want to go steady. __________39It also means they don’t want to date anyone else. Romance is beginning to bloom.
