某地教育部门欲派5名工作人员到3所学校进行地震安全教育，每所学校至少1人，至多派2人，则不同的安排方案共有______种．（用数字作答）

用连词but, and, so, or填空。

1. What is your favorite color, green ________ orange?

2. Jeff is good at maths, ________ he is not good at Chinese.

3. It's 9 o'clock, ________ the little boy stops watching TV and goes to bed.

4. Let's go ________ see who is dancing over there.

5. You have to take a taxi, ________ you'll be late for work.