Read and circle. (读一读，选出适当的单词)

1. I usually ____ do / does morning exercises at 8:30.

2. He ____ eat / eats dinner at 7:00 in the morning.

3. What's ____ you / your favorite season?

4. Because I ____ can / do sleep for a long time.

5. I often ____ play / played football after school.

仓储成本与服务品质在一定范围内成正比。