1. 现在有不少大学生毕业后开始自主创业；
2. 分析产生这一现象的原因；
3. 我认为……

A. To encourage people to participate in a club activity.
B. To introduce a new kind of bicycle.
C. To inform bicycle beginners about New Jersey’s traffic laws.
D. To warn tourists about bicycling on the roadways.

A. To save money on equipment.
B. To instruct newcomers about bicycle maintenance.
C. To ensure that everyone knows about the historical sites.
D. To help keep participants from getting lost.